Lingnan University · FACULTY OF ACCOUNTING

ACT503 Cost and Management Accounting

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13 Chapters82-page Bible
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The Complete Exam Bible · T1 2026-27

ACT503 Overview

Cost and Management Accounting
— Name the cost object, then choose the number that fits the decision in front of you.
  • Lingnan University
  • Term 1, 2026-27
  • Master of Accountancy core course
  • Three credits, 42 contact hours
  • Open book midterm and final

What this course is actually asking you to do

This is a core course of the Master of Accountancy, taught by the Department of Accountancy, and its published aim is to give a broad understanding of the concepts and techniques of cost and management accounting and a deep appreciation of how management accounting information is used in planning, control and decision making.

  • Assessed by Class participation and online exercises, a group case assignment, an open book midterm test and an open book final examination.
  • The skill being tested Producing the right figure for a named decision, then saying what a manager would do differently because of it.
  • Hardest step Choosing the costing system and the cost object before any arithmetic starts, because every later figure inherits that choice.
  • Where to confirm Assessment dates, the group case brief and the required textbook edition are controlled by the course Moodle page.
ACT503 · Lingnan University
An independent, AskSia-authored study guide. AskSia is not affiliated with, endorsed by, or sponsored by Lingnan University; the course code and name are used for identification only.
Assessment

How ACT503 is assessed

ComponentWeightFormat
Class Participation and Exercises10%Half for participation and preparedness in class discussion and exercises, half for the online assignments set chapter by chapter
Group Assignment15%A group case applying the course concepts to a real company, marked on content, organisation, quality of English and peer evaluation
Midterm Test25%Open book, covering the first part of the course
Final Examination50%Open book, conceptual and numerical questions across the whole course

The published course syllabus and the first class administrative slides give the same four components and the same four weights, and they total one hundred per cent. Two points matter beyond the table. The ten per cent component is split evenly by its own rubric between class participation and the online exercises, and the online half is graded on how many required submissions you complete, with the top band asking for nine or more. And no pass condition, hurdle, attendance threshold or late penalty rate is stated anywhere in the course materials available here, so every hurdle cell above records the position as not stated: confirm it on the course Moodle page rather than assume either way.

Assessment structure

10%15%25%50%Participation and exercisesGroup assignmentMidterm testFinal examination

Three quarters of the mark sits in two open book assessments.

Current dates · verify in LMS

Current ACT503 dates

DateItemControl
31 August 2026Term 1 classes beginThe published academic calendar gives the Term 1 start date, and the teaching schedule shows week one starting on the same day.
Week beginning 19 October 2026Midterm test weekThe teaching schedule places the midterm in week eight and records the details as still to be confirmed; the administrative slides say week eight or nine. Confirm on Moodle.
31 October 2026First batch of online assignments due, 11:59 pmStated in the notes to the published teaching schedule for this offering.
7 December 2026Remaining online assignments due, 11:59 pmStated in the notes to the published teaching schedule for this offering.

Dates are as published in the published teaching schedule and academic calendar for this offering. Confirm exact deadlines and submission settings in the live LMS.

Contents · every chapter, one map

What ACT503 covers

Thirteen chapters follow the published teaching schedule week by week, from the role of the management accountant and the vocabulary of cost, through the four costing systems, pricing, budgeting and variance analysis, to relevant costs, the balanced scorecard, transfer pricing and performance measurement.

01

The Manager and Management Accounting

what management accounting is for and who it reports to · strategy, the value chain and the supply chain · the five step decision process · three guidelines and two professional codes

Three labels that are used loosely everywhere else

Management accounting measures, analyses and reports financial and non financial information that helps managers make decisions to fulfil the goals of the organisation, and it need not comply with generally accepted accounting principles.

  • What management accounting measures and who it reports to
  • Six dimensions that separate management from financial accounting
  • Cost leadership against product differentiation
  • The value chain, and the supply chain inside it
  • Five key success factors customers expect the chain to improve
  • The five step decision process, and where planning becomes control
02

Cost Terms, Cost Objects and Cost Behaviour

tracing against allocating · the two independent classification pairs · relevant range and the mixed cost line · three inventories and the schedule that empties them

Two questions, asked separately and in this order

A cost is a resource sacrificed or forgone to achieve a specific objective. Everything else in this chapter qualifies that sentence in one of two ways.

  • Cost, actual cost, budgeted cost and cost object
  • Cost accumulation against cost assignment
  • Tracing a direct cost against allocating an indirect one
  • Three factors that move the direct and indirect boundary
  • Variable, fixed and mixed, in total and per unit
  • The relevant range, and what happens at the edge of it
03

Cost Volume Profit Analysis

contribution margin against gross margin · six assumptions · breakeven and target operating income · sensitivity, margin of safety and operating leverage

One rearranged income statement, and everything that falls out of it

Contribution margin is revenue less variable costs, and the course definition says all the variable costs, whatever business function they sit in.

  • Contribution margin, per unit and as a ratio
  • Contribution margin against gross margin, and when they diverge
  • Three ways of writing profit, and which one gives units
  • Six assumptions the model rests on
  • Breakeven in units and in sales value
  • Target operating income, added into the numerator
04

Job Costing and Overhead Application

job costing against process costing · actual against normal costing · seven steps and the two multiplications · three ways to dispose of the year end difference

Two systems at opposite ends of one question

A process costing system has masses of identical or similar units as its cost object, so the unit cost is total cost divided by units.

  • Job costing against process costing, decided by the output
  • Cost pool and cost allocation base as design choices
  • Actual costing against normal costing
  • Six reasons a manager cannot wait for an actual rate
  • The seven step approach under normal costing
  • Budgeted rate and allocated overhead, two different multiplications
05

Process Costing and Equivalent Units

when averaging is right · materials at the start and conversion added evenly · the five steps in two columns · weighted average against first in first out

When averaging is the right answer

Process costing applies where masses of identical or similar units pass through the same operations, so that each unit receives the same or similar direct materials, direct labour and manufacturing overhead, and the unit cost is total costs incurred divided by units of output.

  • Where process costing is appropriate, and why
  • Materials at the start against conversion added evenly
  • Equivalent units, and why two columns are needed
  • The five step production cost report
  • The weighted average numerator and denominator
  • The first in first out layers, and started and completed
06

Activity Based Costing and Management

broad averaging and cross subsidisation · three reasons to refine and three guidelines · the four level cost hierarchy · what the refined figures change

What a single average hides, and in which direction

Broad averaging spreads the cost of resources uniformly across cost objects regardless of how those resources are actually consumed, and its consequence is a systematic pair of errors rather than random noise.

  • Peanut butter costing and what it does to a mixed product line
  • Overcosting, undercosting and cross subsidisation
  • The plant wide rate, the departmental method and their trade offs
  • Three reasons for refining a costing system
  • Three guidelines: direct tracing, homogeneous pools, causal bases
  • Activity, activity cost pool and activity measure
07

Pricing Decisions and Cost Management

customers, competitors and costs · short run against long run · target costing and value engineering · cost plus and the markup · life cycle and locked in costs

Three influences, and two routes through them

Price ultimately depends on demand and supply, and three things influence it. Customers influence price through demand, by way of the features and quality they want.

  • Customers, competitors and costs as the three influences
  • Short run against long run pricing horizons
  • Market based against cost based approaches
  • The four steps to a target price and a target cost
  • Value engineering as the only step with slack in it
  • Four cost bases and why full cost is common practice
08

The Master Budget and Responsibility Accounting

the operating budget chain and what each schedule inherits · production against materials · the four sections of a cash budget · four responsibility centres

A chain in which every schedule inherits the one before it

The budget was introduced early in this course as the most important planning tool, defined as a plan restated in numbers and the instrument that makes the parts of a firm agree on what each will do to deliver it.

  • The master budget, and its operating and financial halves
  • Why every schedule inherits the sales forecast
  • Production budget: sales, plus closing, less opening
  • Materials usage and purchases, driven by production
  • Labour and overhead budgets, and the budgeted income statement
  • The four sections of a cash budget
09

Flexible Budgets and Variance Analysis

static, flexible and actual in three columns · the sign convention · price and efficiency for each input · four overhead variances and the one that is not about spending

Three columns, and the middle one is the whole apparatus

A static budget is built for one planned level of output, so comparing it directly with an actual result at a different level mixes a change in volume with a change in how well resources were managed.

  • Static budget, flexible budget and actual result
  • The flexible budget variance and the sales volume variance
  • The favourable and unfavourable convention, and why it is not praise
  • Price and efficiency for each direct cost input
  • The standard quantity allowed for the actual output
  • Materials price measured at purchase or at use
10

Relevant Information and Decision Making

future and different, both tests · five recurring decision shapes · opportunity cost and the sunk cost trap · the qualitative side stated with a direction

Two tests in series, and both must pass

A relevant cost or revenue lies in the future and differs between the alternatives being considered. Both conditions are necessary and neither alone is sufficient.

  • Future and different, the two relevance tests
  • Why an allocated cost fails the second test
  • Relevance against size, and against the variable and fixed pair
  • One time special orders and the price that is not a floor
  • Make or buy, and the avoidable part of a fixed block
  • Add or drop, and what avoidable actually means
11

Balanced Scorecard and Sustainability Reporting

four perspectives and the causal chain · lead measures against lag measures · the Hong Kong disclosure code · where the reporting gap becomes a systems gap

Four perspectives, and the arrows are the argument

A balanced scorecard translates a strategy into a small set of measures arranged across four perspectives: financial, customer, internal business process, and learning and growth.

  • Four perspectives and the direction the arrows run
  • Lead measures against lag measures
  • Three ways a scorecard fails in practice
  • From voluntary guidance to a mandatory disclosure code
  • Scope one and two mandatory, beyond that comply or explain
  • Governance, strategy, risk management, metrics and targets
12

Management Control and Transfer Pricing

what a control system is and what goal congruence means · the costs of decentralising · four transfer pricing methods · the general rule and the capacity question

Control systems and the standard they are judged against

A management control system is the means by which an organisation gathers and uses information to aid and coordinate its planning and control decisions and to guide the behaviour of managers and employees.

  • What a management control system is, formal and informal
  • Goal congruence and effort as the two standards
  • Four benefits of decentralising and the cost beside each
  • Why transfer pricing exists at all
  • Market based, cost based, negotiated and dual pricing
  • Why a full cost transfer price distorts a buyer's margin
13

Performance Measurement and Strategic Frameworks

return on investment and its two levers · residual income and economic value added · the suboptimisation problem · four predictable distortions and what counters them

Three ways of combining profit with the capital that produced it

An investment centre manager answers for revenues, costs and the capital employed, so the measure has to combine a profit figure with the assets used to earn it.

  • Return on investment and its two levers
  • Operating margin against asset turnover
  • Residual income and the capital charge
  • Economic value added and its three refinements
  • The suboptimisation problem, and why an amount fixes it
  • What residual income gives up in exchange

Three quarters of the mark sits in two open book assessments, and the rubric that governs both puts fifty per cent of its weight on identifying and analysing the problem and then applying knowledge to solve it, against forty per cent for comprehension of the concepts. A correct schedule answers the smaller criterion.

Saying which figure a manager should act on, and why the other figure would mislead, answers the larger one.

The Manager and Management Accounting

The opening chapter separates three labels used loosely everywhere else.

Management accounting measures and reports financial and non financial information for managers and need not follow the external reporting rules; financial accounting reports to outside users and must; cost accounting reports on the cost of acquiring and using resources, and the course notes that the boundary between cost and management accounting is no longer clear cut.

The chapter then fixes the value chain, the five step decision process that runs from identifying a problem to implementing and learning, and the three guidelines that decide how a management accountant adds value.

It closes on two professional codes, because ethics here is examined as a procedure rather than as a sentiment.

Cost Terms, Cost Objects and Cost Behaviour

Two classification questions run through the whole course and they are independent of each other.

The first asks whether a cost can be conveniently and economically traced to a named cost object, which makes it direct, or must be allocated, which makes it indirect. The second asks whether the total moves with an activity level, which makes it variable, or holds within the relevant range, which makes it fixed. Collapsing those two pairs into one is the commonest structural error in this subject.

The chapter then builds the three inventory relationships that produce a cost of goods manufactured schedule, where three closing balances are each subtracted in a different section.

Cost Volume Profit Analysis

Rearranging an income statement by cost behaviour rather than by function produces contribution margin, and once that exists the breakeven point, the volume needed for a target operating income, the margin of safety and the degree of operating leverage all follow from three inputs.

The chapter also names the six assumptions the model rests on, each of which is a question a paper can ask, and it drills sensitivity analysis, where the discipline is to rebuild the contribution margin from the new inputs rather than adjusting the previous answer.

The most useful single lesson is that a larger sales figure and a smaller profit are perfectly compatible.

Job Costing and Overhead Application

A job costing system is used where units are distinct and consume different amounts of resource, and normal costing applies overhead at a budgeted rate multiplied by actual activity.

That combination of one budgeted input and one actual input is where most errors in the chapter start. At the year end actual overhead is compared with the amount applied, which gives an under or over allocation, and the course sets out three ways of disposing of it that produce three different closing balances on identical facts.

Knowing why the three differ, and which basis charges each account in proportion to the overhead actually put there, is what the argued part of such a question is for.

Process Costing and Equivalent Units

Where units are identical the average is the answer, and the work is in counting partially finished output.

Materials are usually added at the start of a process and conversion costs accrue evenly along it, so ending stock routinely carries two different completion percentages and needs two separate rates. The five step production cost report is the same under both methods; what changes is whose work is being counted.

The weighted average method blends the opening balance into the numerator and counts every piece of work performed on the units so far, while the first in first out method uses only this period's costs over only this period's work, and mixing the two conventions is the standard wreck.

Activity Based Costing and Management

A single plant wide rate spreads overhead uniformly regardless of how resources are actually consumed, which systematically overcosts simple products and undercosts complex ones by exactly the same total amount.

The chapter builds the refined alternative from three guidelines and sorts activities into a four level hierarchy, so that the level at which a resource is consumed explains the direction of the error.

It also sets the boundary honestly: a refined system does not guarantee more accurate costs, because accuracy comes from the causal story behind each driver rather than from the number of pools, and the total cost of the firm is unchanged either way.

Pricing Decisions and Cost Management

Price depends on customers, competitors and costs, and the two long run approaches enter that triangle from opposite ends.

Target costing takes the price from the market and the required profit from the capital employed, leaving cost as the constraint the design team has to meet through value engineering. Cost plus pricing takes cost as given and produces a price through a markup whose size depends on how narrow the chosen cost base is.

The chapter also separates costs incurred from costs locked in, which explains why environmental costs are so expensive to remove after a design is fixed, and closes on the pricing practices that are unlawful.

The Master Budget and Responsibility Accounting

The master budget is a chain in which every schedule takes a quantity that only the schedule before it can supply, which is why an optimistic sales forecast is not one error but the same error repeated throughout.

The production budget and the materials purchases budget share a shape and take different inputs, and driving materials off sales rather than off production is the classic silent failure. The cash budget puts timing back into a plan that the income statement removed, and depreciation appears in one and never in the other.

Responsibility accounting then attaches each figure to a manager, and the four kinds of centre differ in how much of the result the manager may actually decide.

Flexible Budgets and Variance Analysis

Comparing an actual result with a static budget mixes a change in volume with a change in how well resources were managed.

The flexible budget separates them by asking what the budget would have said at the output that actually occurred, and every variance in the chapter is then a difference between two adjacent columns. Each direct cost input splits into a price variance, which holds quantity at actual, and an efficiency variance, which holds rate at standard.

Overhead splits four ways, and one of those four, the production volume variance, is not about spending at all but about capacity used against capacity assumed when the absorption rate was set.

Relevant Information and Decision Making

A cost is relevant only if it lies in the future and differs between the alternatives, and both tests must pass.

The accounting system is not built to answer that question, because it records what has happened and allocates costs that do not differ, so a unit cost taken from the ledger is almost never the right input to a decision.

The chapter works through five recurring decision shapes and the planted figure inside each, and it gives the two items the ledger will always mislead you about: a sunk cost, whose size has no bearing on its irrelevance, and an opportunity cost, which passes both tests and appears in no ledger anywhere.

Balanced Scorecard and Sustainability Reporting

A balanced scorecard arranges a small set of measures across four perspectives so that the financial outcome sits at the top of a stated chain of cause and effect, with lead measures reporting the drivers and lag measures reporting the outcomes.

The second half of the chapter covers the disclosure regime this course is taught inside, where Hong Kong practice has moved from voluntary guidance to a mandatory code with climate requirements organised around governance, strategy, risk management and metrics.

The two halves are the same problem: both fail when a firm measures what is easy to measure rather than what its strategy needs.

Management Control and Transfer Pricing

A management control system gathers and uses information to coordinate planning and control and to guide behaviour, and it is judged on goal congruence, meaning whether the decisions that make a manager look good are also the decisions the organisation wants.

Transfer pricing exists only because units are held to their own results: nothing enters or leaves the group when a component moves internally, so the price cannot create value and can only change who wants what.

The general rule sets the supplier floor at incremental cost plus opportunity cost, and almost every question turns on whether there is spare capacity, because that single fact decides whether the second term is zero.

Performance Measurement and Strategic Frameworks

An investment centre manager answers for capital as well as for profit, and three measures combine them differently.

Return on investment is a percentage that decomposes into margin and asset turnover, and its structural flaw is that a manager rejects any project below the division's own current rate even when the group wants it accepted. Residual income and economic value added are amounts and do not carry that flaw.

All three share a short horizon problem that can be exploited by deferring maintenance and training, which is why the published content pairs them with non financial and sustainability metrics rather than treating those as a separate topic.

Worked example · free

Decide which costing system the situation calls for, then name the cost object

Q [9 marks]. AskSia authored practice. A workshop does three things in one building. It runs a line producing one standard bracket in continuous batches, it takes individual customer orders for fabricated frames that differ in every dimension, and it runs a small refurbishment service that quotes per item. Overhead is currently applied on a single plant wide machine hour rate. Say which costing system each activity needs, what the cost object is in each, and what the single rate is doing to the three of them. The marks shown are an AskSia study allocation and are not the University's marking scheme.
Compliance is nearly universal and depth is not.Compliance is nearly universal and depth is not. The three weakest bars are exactly the items that require a management accounting system rather than a reporting exercise.Hong Kong listed company practice: where disclosure is strong and where it thinsScope 1 and 2 emissions99%Reports over 60 pages86%Stand alone ESG report83%Referred to GRI70%Referred to TCFD61%Scope 3 emissions41%Assured or verified40%Referred to ISSB22%Source: a 2025 survey of Hong Kong listed companies supplied as course reading. The weak end is where the management accounting work is
Compliance is nearly universal and depth is not. The three weakest bars are exactly the items that require a management accounting system rather than a reporting exercise.
  • 3Assign a costing system to each activity and name the cost object.
  • 4State the direction of the error the single rate produces, and why.
  • 2Say what you would change first, and what evidence would tell you it worked.
The standard bracket line is process costing: the units are identical, so the cost object is the output of the period and the unit cost is an average. Both the fabricated frames and the refurbishment quotes are job costing, because each unit is distinct and consumes different resources, so the cost object is one job. The single machine hour rate then undercosts whatever consumes resources above the unit level and overcosts whatever does not, by exactly the same total amount, because the overhead pool does not change. The frames and the refurbishment work carry setups, drawings and order handling that no machine hour rate can see, so both are undercosted and the bracket line is subsidising them. The first change is to open separate pools for setup, design and order handling with their own drivers, and the evidence that it worked is a change in the win rate and the margin on quoted work, not a change in total overhead, which stays exactly where it was.
Sia tip — Write the cost object on the page before the first number. A cost is direct or indirect only with respect to something named, and an answer that never names it cannot be marked right.
Glossary

Key terms

Cost Object
Anything for which a separate measurement of cost is wanted, such as a product, a service, a customer, a department or an activity. Nothing is a cost object until someone names it, and the direct or indirect classification of a cost is a claim about its relationship to that named object rather than a property of the cost itself.
Contribution Margin
Revenue less all variable costs, whatever business function those costs sit in. It measures how much revenue is available to cover fixed costs and then provide operating income, which is why it and not gross margin drives breakeven, target income and operating leverage.
Normal Costing
A costing method that applies indirect costs at a budgeted rate multiplied by the actual quantity of the allocation base consumed. It exists because an actual rate cannot be known until the period closes, and managers need a job cost before then to price, monitor, evaluate and bid.
Equivalent Unit
The number of partially completed units multiplied by their percentage of completion, computed separately for materials and for conversion because the two usually carry different percentages. It exists so that unfinished stock absorbs a share of cost proportional to the work actually done on it.
Cross Subsidisation
The effect by which undercosting one product forces the overcosting of at least one other by the same amount, because the overhead pool being spread does not change. It makes the overcosted product look less profitable than it is and the undercosted one look more profitable.
Target Cost
The maximum allowable cost of a new product, found by subtracting the required operating income per unit from a target price the market is expected to bear. It is a constraint imposed on a design team rather than a measurement reported to it.
Flexible Budget
A budget recomputed at the output level that actually occurred, which separates the effect of selling a different volume from the effect of managing resources differently. Every price and efficiency variance is measured against it rather than against the original static budget.
Relevant Cost
A cost that lies in the future and differs between the alternatives under consideration. Both conditions are necessary, which is why an allocated overhead that continues under either option fails the test even though it is entirely a future cost.
Residual Income
Operating income less a charge for the capital employed at the required rate of return. Because it is an amount rather than a percentage, a manager measured on it accepts any project earning above the required rate, which a return on investment measure would cause the same manager to reject.
FAQ

ACT503 FAQ

Are the midterm and the final open book?

Yes. The published syllabus labels both the midterm test and the final examination as open book, and the first class administrative slides repeat it. That moves the difficulty rather than removing it: what an open book removes is the recall of formulas, and what it leaves is speed, selection and judgement under time pressure. Prepare a one page index of the schedules rather than a thick folder you will never search.

How much does each component count towards the grade?

Four components total one hundred per cent: class participation and exercises ten, the group assignment fifteen, the midterm test twenty five and the final examination fifty. The two published documents agree on all four figures, which is worth knowing because they disagree on the required textbook edition. Confirm the current position on Moodle before planning your time around either.

What is the cheapest mark in this course to lose by accident?

The online exercises. Half of the ten per cent continuous component is graded on how many required online submissions you complete, with the top band asking for nine or more, and the submissions are set chapter by chapter with deadlines arriving in two batches rather than weekly. Each assignment allows three attempts with the highest mark counted, so nothing about it rewards leaving them.

Is there a hurdle or a minimum mark I have to reach?

No pass condition, hurdle, attendance threshold or late penalty rate appears anywhere in the course materials available here, and that silence is not the same as a published rule either way. Check the current position on the course Moodle page and in the University regulations rather than assuming from the weights alone.

How do I know which costing system a question wants?

Ask whether the units being costed are distinguishable from each other. Masses of identical or similar units make averaging appropriate, so the system is process costing and the unit cost is total cost divided by output. Distinct units made to order consume different resources, so an average would mislead and each job carries its own record.

A single firm can legitimately run both systems at once for different parts of its output.

Why do the direction words matter so much in this subject?

Because each pair is symmetric, so a reversed one is invisible in your own working and immediately visible to a marker. Underallocated against overallocated, favourable against unfavourable, undercosted against overcosted: each reverses the recommendation that follows from an otherwise correct calculation. Re-derive every direction word from its own comparison before handing in, rather than recalling which way it went.

What do the published rubrics actually reward?

The rubric governing both the test and the examination puts fifty per cent on identifying and critically analysing the problem and then applying knowledge to solve it, forty on comprehension of the concepts and ten on expressing ideas logically and clearly.

The group assignment rubric puts sixty per cent on content, whose top band asks for major issues addressed thoroughly with specific and relevant data connected to the conclusions.

May I use artificial intelligence tools for the assessments?

Not for the open book midterm or the open book final examination; the course states its own prohibition on top of the two University documents it points you to. They may be used for the group project provided a declaration is supplied as the University policy describes and proper citation appears in the submitted work, and a group may choose not to use them; the same rubrics apply either way.

Chapter questions

Questions students ask in each ACT503 chapter

What is the difference between cost accounting and management accounting?
The course defines cost accounting as reporting on the costs of acquiring or using resources, and management accounting as reporting financial and non financial information to help managers meet organisational goals. It then says plainly that most professionals treat cost information as part of management accounting, so the distinction is not clear cut and the two terms are often used interchangeably. Do not build an answer on a sharp boundary the course itself declines to draw. Chapter 01 · The Manager and Management Accounting
Can the same cost be both direct and indirect?
Yes, and reclassifying it when the cost object changes is not an error. A production line supervisor is indirect to each individual product on the line, because no convenient economic route traces the salary to one unit, and direct to the line itself, because the supervisor works on nothing else. Name the cost object in each sentence, because a marker cannot otherwise distinguish a correct reclassification from a contradiction. Chapter 02 · Cost Terms, Cost Objects and Cost Behaviour
Why is contribution margin not the same thing as gross margin?
Gross margin deducts cost of goods sold, which contains the fixed manufacturing overhead absorbed into the units, while contribution margin deducts every variable cost including selling and distribution costs that sit well below gross margin in a traditional statement. A firm with heavy fixed manufacturing overhead reports a lower gross margin than contribution margin, and one paying large sales commissions on a lightly automated product reports the reverse. Chapter 03 · Cost Volume Profit Analysis
Why use a rate that is known in advance to be wrong?
Because an actual indirect cost rate cannot be computed until actual overhead and actual activity are both known, which is after the period ends. Managers need a job cost before then to price the job, monitor and manage its costs, evaluate whether it succeeded, learn from it, bid on new work and prepare interim statements. A budgeted rate buys all six at the price of one year end adjustment. Chapter 04 · Job Costing and Overhead Application
Do I subtract the opening work in process equivalent units or not?
Only under first in first out. The weighted average method does not strip the prior period work out, because its whole design blends the opening balance into the numerator, so its denominator counts every piece of work performed on the units so far. A problem supplies the opening completion percentages for both methods, which is why reading the requirement before writing a column heading matters more than the arithmetic. Chapter 05 · Process Costing and Equivalent Units
Which product does a single volume driver undercost?
Whatever is complex, meaning whatever consumes resources at a level above the individual unit. A product made in short runs with frequent design changes and many small orders consumes batch level and product sustaining resources that a machine hour rate cannot see, so it is charged as though it consumed only unit level resources. The simple high volume product is overcosted by exactly the same total amount. Chapter 06 · Activity Based Costing and Management
What is the difference between target costing and cost plus pricing?
The direction in which the calculation is solved. Target costing takes the price from the market and the profit from the capital employed and leaves cost as the constraint the design has to meet. Cost plus takes the cost as given and produces a price through a markup. The first sets characteristics and price before computing a cost; the second computes a price that the market may then refuse. Chapter 07 · Pricing Decisions and Cost Management
Which figure drives the materials budget?
Budgeted production, never budgeted sales. Production is itself budgeted sales adjusted for the finished goods inventory policy, so the two differ whenever closing stock is not equal to opening stock. A materials budget built directly on the sales figure is short or long by the whole of that inventory movement, and the resulting figure looks entirely plausible on the page. Chapter 08 · The Master Budget and Responsibility Accounting
What does favourable actually mean?
That the outcome increased operating income relative to the budget, which for a cost means actual below standard and for a revenue means the opposite. The label is arithmetic rather than evaluative. A favourable materials price variance earned by buying cheaper material that then wastes in production is favourable and bad, and computing the variances together is what makes that pairing visible. Chapter 09 · Flexible Budgets and Variance Analysis
Is a fixed cost always irrelevant?
No, and neither is a variable cost always relevant. The two pairs from earlier in the course describe behaviour with respect to volume, while relevance describes behaviour with respect to a choice. A fixed supervisor salary that disappears if production stops passes both tests; a variable cost that is identical under both options fails the second. Starting an answer by separating variable from fixed is the commonest way to lose the thread. Chapter 10 · Relevant Information and Decision Making
What makes a scorecard different from a longer list of measures?
The stated causal links between the perspectives. Financial results are the last thing to move, so a scorecard that reports only them tells a manager what happened and never what to do; the other three perspectives exist to hold the drivers. Without arrows the four perspectives are four lists, and a proposed measure that cannot be connected upwards is evidence that its objective is not really part of the strategy. Chapter 11 · Balanced Scorecard and Sustainability Reporting
Why does a transfer price matter if nothing leaves the group?
Because two managers are each measured on their own result, so the price is revenue for one and cost for the other and decides which of them looks good. It cannot create value, but it can make a division decline work the group wants taken or accept work the group would rather it refused. That is why the subject is taught as a control problem rather than as a costing one. Chapter 12 · Management Control and Transfer Pricing
Why can two divisions with the same return on investment need opposite advice?
Because the ratio is a product of two levers. A division earning fifteen per cent on a three per cent margin runs a turnover of five and is a high volume, thin margin business whose assets work hard. One earning fifteen per cent on a ten per cent margin runs a turnover of one and a half and is asset heavy. A cost reduction programme aimed at margin belongs at the first and an asset programme at the second. Chapter 13 · Performance Measurement and Strategic Frameworks
Study strategy

How to study for the exam

Invent one small manufacturer at the start of the course, give it two products, a materials store, a work in process account and a finished goods store, and put every technique through it as you meet it. By the time you reach variance analysis you will already know where the figures come from, and by the time you reach transfer pricing you will have two divisions to argue about.

Then practise the move the whole course is built on: after every number you produce, write one sentence saying what a manager would do differently because of it. That sentence is what the fifty per cent application criterion is buying, and it is the only part of an answer that a thick open book folder cannot supply for you.

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