Cost units and cost centresDefinitions Cost unit – a unit of product or service in relation to which costs are ascertained Cost centre – a production or service location, function, activ
Trang 1CIMA REVISION CARDS
Management Accounting
Fundamentals
Janet Walker
Certificate Level Paper C1
AMSTERDAM l BOSTON l HEIDELBERG l LONDON l NEW YORK l OXFORD PARIS l SAN DIEGO l SAN FRANCISCO l SINGAPORE l SYDNEY l TOKYO
Trang 2Linacre House, Jordan Hill, Oxford OX2 8DP
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First published 2005
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ISBN 07506 64770
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Trang 3Welcome to CIMA’s Official Revision Cards These cards have been designed to:
. Save you time by summarising the syllabus in a concise form
. Jog your memory through the use of diagrams and bullet points
. Follow the structure of the CIMA Official Study Systems
. Refer to relevant questions found within the Preparing for the Assessment section of the study system. Provide you with plenty of assessment tips and hints
Ensure assessment success by revising with the only revision cards endorsed by CIMA
Trang 4TABLE OF CONTENTS
1 Basic aspects of cost accounting 1
2 Materials 11
3 Labour 19
4 Overhead 25
5 Specific order costing 31
6 Continuous operation costing 37
7 Bookkeeping systems 55
8 Absorption costing and marginal costing 63
9 Breakeven analysis and decision-making 71
10 Budgetary planning and control 87
11 Standard costing and variance analysis 101
Trang 5Basic Aspects of Cost AccountingThe fundamental concepts of the framework of cost accounting
Topics
. Cost units and cost centres
. The classification of costs
. The coding of costs
. The elements of cost
. Cost behaviour patterns
. Analysing semi-variable costs
Key study system questions
1 Cost behaviour
3 High-low method
1
Trang 6Cost units and cost centres
Definitions
Cost unit – a unit of product or service in relation
to which costs are ascertained
Cost centre – a production or service location,
function, activity or item of equipment for which
costs are accumulated
The link between cost centres and
cost units
A cost centre acts as a collecting place for costs
The total cost centre cost may then be related to
the cost units which have passed through the cost
centre to determine a cost per unit
Cost unit examples
Product: litre of paint, batch of cakesService: restaurant meal, tonne-mile
Cost centre examples
Location: production department AFunction: administration
Activity: invoice processingItem of equipment: stamping machine
2
Basic Aspects of Cost Accounting
Trang 7The classification of costs
Types of cost classifications
K Nature of cost: material, labour or expense
K Direct or indirect
K Functional analysis: production, selling,
distribution, administration
K Fixed or variable
K Controllable and non-controllable: important
when preparing management information
K Normal and abnormal: highlighting abnormal
events draws them to managers’ attention
K Relevant and non-relevant: in respect of
Trang 8The coding of costs
Definition
Code – a system of symbols designed to be
applied to a classified set of items to give a brief
accurate reference, facilitating entry, collation and
analysis
Advantages of a coding system
K A code is usually briefer than a description
K Reduces ambiguity
K Assists computerised processing of data
Requirements for efficient coding system
K Each code should be unique and certain
K Coding system should be comprehensive and
capable of expanding to include new items
K Code numbers should be as brief as possible
K Incorporate check digits in computerised codes
K Only authorised personnel permitted to add new
Trang 9The elements of cost
Study tip
A sound understanding of the difference between
total direct cost, total production cost and total
cost will help you in assessment questions on a
variety of different topics
5
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Basic Aspects of Cost Accounting
Trang 10Cost behaviour patterns
Cost behaviour patterns describe the way that costs behave in relation to changes in the level of activity
Definition
Fixed cost – a cost which, within certain activity
limits, is not affected by fluctuations in the level of
activity
Examples of fixed costs
K Rent of the factory
K Accountant’s salary
Definition
Stepped fixed cost – a cost which remains constant
for a range of activities, but which increases to the
next step when a critical level of activity is reached
Examples of stepped fixed costs
Trang 11Cost behaviour patterns
Definition
Variable cost – a cost which varies in relation to
the level of activity
Examples of variable costs
K Packaging material costs
K Royalties
Definition
Semi-variable cost – a cost containing both
fixed and variable components and which is thus
partly affected by a change in the level of activity
Examples of semi-variable costs
K Telephone expenses
K Gas and electricity bills
Semi-variable costs are also referred to assemi-fixed or mixed costs
7
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Basic Aspects of Cost Accounting
Trang 12Analysing semi-variable costs
The high-low method
K Uses historical data on costs and activity levels
K Selects the highest and lowest activity levels and
assumes that the change in cost between the
levels is caused by the change in variable cost
K Variable cost per unit of activity is determined by
dividing change in total cost by change in activity
level
K Fixed cost determined by substituting variable
cost per unit into either of the activity levels
Study tipThis is a very important technique It is vital
that you are able to apply it to a wide variety of
data The activity measure will vary but the
technique remains the same
Variable cost per unit ¼£ ð5;200 4;330Þ
ð800 220Þ
¼£ 1:50Fixed cost ¼ £ 5;200 £ ð1:50 800Þ
¼£ 4;000
8
Basic Aspects of Cost Accounting
Trang 13Analysing semi-variable costs
Scattergraph
K Uses historical data on costs and activity levels
K All available pairs of data plotted on graph
K Line of best fit is drawn by eye
Example
Fixed cost ¼ vertical axis intercept ¼ £ 200
Variable cost per unit ¼ gradient of line of best fit
¼£ ð500 200Þð150 0Þ
Fixed cost is given by intercept on vertical
axis, i.e., cost at zero activity
9
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Basic Aspects of Cost Accounting
Trang 15Materials accounting and control procedures
Topics
. Recording stock movements
. Stock control levels
. Stock valuation
Key study system questions
8 Stock level calculations
11 Stock control
12 Stock valuation methods
11
Trang 16Recording stock movements
Ordering and receiving stock
1 Stockholding falls to reorder level
2 Storekeeper raises purchase requisition
3 Buying department completes purchase order
4 Goods received from supplier and goods
received note (GRN) completed
5 Supplier’s invoice received
Supplier may also leave a delivery noteCopy of GRN sent to accounts departmentand to buying department
Invoice checked against purchase orderand GRN before being authorised forpayment
12
Materials
Trang 17Recording stock movements
Issuing stock from stores
1 Department requiring materials raises material
requisition
2 Excess materials returned to stores are
recorded on a materials returned note
3 Excess materials transferred to another job
without first returning to stores are recorded
on a materials transfer note
Ensures that cost of material is charged tocorrect cost centre or cost unit
13
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Materials
Trang 18Recording stock movements
Recording and checking stock
balances
K Bin cards and/or stores ledger cards record all
transactions and show continual record of stock
balance
K Stock may be counted and checked against stock
records annually on a particular date
K Alternatively, a number of items may be counted
and checked against records each day This is
continuous stocktaking Each item is checked
at least once a year
14
Materials
Trang 19Stock control levels
Stock kept at optimum level to minimise risk of
stock-outs and the costs of ordering and storing
stock Usually achieved by monitoring free stock
balance ¼ physical stock þ stock on order with
suppliers outstanding requirements unfulfilled
Reorder level ¼ maximum usage maximum lead time
Minimum level ¼ reorder level (average
usage average lead time)Maximum level ¼ reorder level þ reorder
quantity (minimumusage minimum lead time)Average stock ¼ safety stock þ ½ reorder quantity
Study tipYou must memorize all the formulae on this card.They will not be provided in the assessment
Reorder level ¼ level of free stock atwhich an order should be placed forreplenishment stock
Trang 20Stock control levels
Definition
Economic order quantity – the order size which
minimises the sum of stock ordering costs and
stockholding costs
EOQ ¼ ffiffiffiffiffiffiffi
2CoD Ch
q
Study tipThe EOQ formula will be provided in the
assessment if you need it But make sure that you
know the meaning of each of the terms in the
formula
EOQ theory assumes average stock
¼order quantity/2, i.e no safety stock is held
16
Materials
Trang 21Stock valuation
Stock valuation methods
K First In First Out (FIFO) – prices issues at the
price of the oldest items in stock
K Last In First Out (LIFO) – prices issues at the
price of the latest items received into stock
K Weighted average (AVCO) – prices issues at the
weighted average price of items in stock
Example data
Opening stock 1st March 200 units at £ 2.00 per unit
Purchases 5th March 500 units at £ 2.35 per unit
Issues 7th March 300 units
FIFO methodValue of issues 7th March ¼ (200 units £ 2.00)
þ(100 units £ 2.35)
¼£ 635Value of closing stock ¼ 400 units £ 2.35 ¼ £ 940LIFO method
Value of issues 7th March ¼ 300 units £ 2.35 ¼ £ 705Value of closing stock ¼ (200 units £ 2.00)
þ(200 units £ 2.35) ¼ £ 870AVCO method
Average price ¼ ((200 £ 2.00) þ (500 £ 2.35))/700
¼£ 2.25 per unitValue of issues 7th March ¼ 300 units £ 2.25 ¼ £ 675Value of closing stock ¼ 400 units £ 2.25 ¼ £ 900
17
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Materials
Trang 22Stock valuation
Closing stock valuation Highest Lowest Between FIFO and LIFOCharge to cost of sales Lowest Highest Between FIFO and LIFO
Calculating the weighted average price
Revised average price usually calculated
whenever new batch received into stock ¼
cumulative weighted average
If single average calculated at period end based
on total purchases for period ¼ periodic moving
average
18
Materials
Trang 23. Time and activity recording systems
. Classification of labour costs
Key study system questions
14 Labour remuneration
15 Labour remuneration
19
Trang 24Remuneration systems
Piecework systems
K Employee paid for output
achieved: outputachieved piecework rate perunit
K May include guaranteed
minimum wage
K Differential system pays
increasing rates for higheroutput: important to state ifhigher rates apply to additionalunits only
K Important to check quality
K Suitable where quantity of
output is important
Bonus schemes
K Employee paid a bonus for
time saved against agreedtarget
K Benefit of efficiency shared
between employee andemployer
K Many different schemes
K May be applied to groups
where: operations carried out
in groups, not possible tomeasure individualperformance, whole groupmust work faster to exceedtargets
Time-based systems
K Employee paid for hours
attended: hours attended
agreed hourly rate
K Wages not dependent on
output achieved
K Overtime hours usually paid at
premium above basic rate
K Suitable where: output difficult
to measure, activities
undertaken vary widely,
quality of output important
20
Labour
Trang 25Labour turnover
Definition
Labour turnover – a measure of the number of
leavers relative to the size of the workforce
Usually expressed as a percentage
Labour turnover ¼ number of leavers replaced
average number of employees
100%
Study tipLearn this formula It will not be provided in the
exam
BenefitsMay help to reduce turnover and encourage highermorale among workforce For example:
Trang 26Time and activity recording systems
Time recording systems
K Important for time-based employees
K Also important for reconciling analysis of total
time in jobbing environment
K Clock cards: record starting and finishing times
May be mechanical or electronic
K Important, with flexible time working for
employees, to know cumulative hours worked
in current period
Activity recording systems
K Important for employees who are paid according
to output
K Also important in a jobbing environment
K Piecework/bonus ticket
K Time sheets: daily or weekly
K Important to record and report on idle time¼when employee is being paid but not doingproductive work
22
Labour
Trang 27Classification of labour costs
Usually treated as direct labour
K Basic pay of direct workers
K Basic rate of direct overtime hours worked
K Overtime premium and bonus payments which
can be identified with specific customer or job
Usually treated as indirect labour
K All payments to indirect workers
K Overtime premium and bonus payments unless
directly attributable to specific job
K Idle time payments
K Holiday pay, sick pay, etc
SolutionDirect wages ¼ £ 37;800 þ ð2=3 £ 3;900Þ
¼£ 40;400Indirect wages ¼ £ 30;800 þ ð1=3 £ 3;900Þ þ £ 400
Trang 30Overhead analysis
Definitions
Overhead – expenditure on labour, materials or
services which cannot be economically identified
with a specific saleable cost unit
Absorption costing – a method of costing that, in
addition to direct costs, assigns production
overhead costs to cost units by means of
overhead absorption rates
Production cost centre – a cost centre that is
directly involved with the production of the
organisation’s output
Service cost centre – a cost centre that provides
support services to the production cost centres,
e.g., maintenance, stores, canteen
Remember
Overhead costs are also called indirect costs
Three stages in overhead analysis
K Allocation Allot whole items of overhead to
individual cost centres, e.g., allocatestorekeeper’s wages to stores cost centre
K Apportionment Apportion remaining overhead
between cost centres on an equitable basis,e.g., apportion factory rent over several costcentres on basis of floor area
K Absorption Absorb total cost centre production
overhead costs into cost units
26
Overhead
Trang 31Overhead apportionment
Apportionment and re-apportionment
K Once all possible direct allocations have been
made, apportion the remaining production
overhead costs to production and service cost
centres on an equitable basis
K Then re-apportion the total of the service cost
centre costs to production cost centres
Remember
After the apportionment stage you should end
up with overheads attributed to production cost
centres only
Reciprocal servicing
K Occurs when service cost centres provide service
to each other
K Take account of reciprocal servicing by repeated
distribution of service cost centre totaloverheads to production cost centres and to otherservice cost centres until amounts involvedbecome negligible
27
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Overhead
Trang 32Overhead absorption
Total overhead of production cost centre is absorbed into
unit costs, using pre-determined overhead absorption
rate (OAR):
OAR ¼budgeted production overhead for cost centre
budgeted units of absorption base
Reasons for pre-determined OARs
K Overhead not incurred evenly over period: actual
rates per unit subject to wide fluctuation
K Activity levels may fluctuate during period: OAR
would also fluctuate
K Managers have an overhead rate available for
use in product costing, price quotations, etc
Main bases of overhead absorption
K Rate per unit – only suitable if identical units
produced
K Direct labour hour rate – suitable for
labour-intensive cost centres
K Machine hour rate – suitable for
machine-intensive cost centres
Study tip
A common error is to use the actualoverhead and activity figures to determine theOAR Remember that OARs are pre-determined,based on budgeted figures for the period
28
Overhead
Trang 33Under/over absorption
Pre-determined OARs result in under or over absorption
due to either or both of the following:
K actual overhead is different from budget
K actual activity level is different from budget
Actual overhead > absorbed overhead ¼ under absorbed
Actual overhead < absorbed overhead ¼ over absorbed
ExampleMachining department results for latest period:
Actual BudgetMachine hours 23,800 22,700Production overhead £ 8,330 £ 9,080Solution
Pre-determined OAR ¼ £ 9,080/22,700
¼£ 0.40 per machine hourOverhead absorbed ¼ 23,800 hr £ 0.40 ¼ £ 9,520Overhead incurred £ 8,330Over-absorbed overhead £ 1,190
29
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Overhead
Trang 35Specific Order Costing
Job, batch and contract costing systems
Topics
. Job and batch costing
. Contract costing
Key study system questions
22 Specific order costing
25 Job/batch costing
26 Specific order costing
31
Trang 36Job and batch costing
Definition
Specific order costing – the basic cost
accounting method applicable where work
consists of separately identifiable contracts, jobs
or batches
Characteristics of job costing
K Customer-driven production Jobs are
undertaken as the result of a customer request
K Each job is a separately identifiable unit
K Jobs are of relatively short duration
K Each job has a unique number Costs are
accumulated against the number on a job card
Characteristics of batch costing
K Similar to job costing
K Each batch is a group of similar articles, which
is separately identifiable from all other batches
K Cost per item within batch¼
total batch costnumber of items in batch
Relatively short duration
Compared with those to which contractcosting is applied
32
Specific Order Costing
Trang 37Job and batch costing
Example
Data for job no 9364 is as follows:
Direct material cost £ 465
Direct labour cost £ 790
Hire of special machine £ 250
Production overheads are absorbed at a rate of 30 per
cent of direct labour cost Other overheads are added at
a rate of 10 per cent of total production cost The required
profit margin for each job is 15 per cent of the sales price
Calculate the selling price of job no 9364, to the nearest
penny Show separate subtotals for prime cost, total
production cost and total cost
Study tip
Be careful! Sometimes the required profit is
expressed as a percentage of the total job cost
SolutionDirect material £ 465.00
Production o’head (£ 790 30%) £ 237.00Total production cost £ 1,742.00Other overhead (£ 1,742 10%) £ 174.20
Trang 38Contract costing
Characteristics of contract costing
K Customer-driven production Contracts are
undertaken as the result of a customer request
K Each contract is a separately identifiable unit,
usually constructional in nature
K Contracts are of relatively long duration and
often span more than one accounting period
K Costs accumulated in separate account for
each contract
K Architect’s certificates state the value of work
completed to date Progress payments are made
by customer according to value of work certified,
less any retention money
The contract account
K Acts as a collecting place for costs incurred on
contract
K Debit all costs incurred during period,
e.g., materials issued to contract, wages paid,plant delivered to site, head office charges
K Credit value of plant or material returned or
transferred from site during period
K Credit value of plant and material on site at end of
period
K Credit cost of work not yet certified
K Balance on account¼ cost of work certifiedduring period
34
Specific Order Costing
Trang 39Contract costing
Recognising profits on contracts
K Profit recognised in stages as contract
progresses Otherwise wild fluctuations in profits
reported year on year
K Requirements of prudence concept must be
adhered to
K No profit recognised if contract in early stages
and final outcome cannot be foreseen with
reasonable certainty
K If difficulties or a loss are foreseen the whole
of the final estimated loss on contract should
be recognised immediately
Study tipMany different methods exist for calculating theprofit to be recognised on an incomplete contract
In the assessment you should assess theinformation available and follow any instructionsconcerning the calculation of profit
35
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Specific Order Costing
Trang 40Contract costing
Example
Agreed contract price £ 380,000
Value of work certified to date £ 340,000
Progress payments received from
Cost of work certified to date £ 275,000
Cost of work to complete contract £ 35,000
(a) Profit to be recognised is a percentage of the
notional profit to date, based on the proportion of
the certified value received from the customer
(b) Profit to be recognised is a percentage of the
estimated final contract profit, based on the
proportion of total contract costs incurred to date
Solution(a) Profit to be recognised ¼ notional profit todate (cash received/value of work certified)
¼£ (340,000 275,000) £ (289,000/340,000)
¼£ 55,250(b) Profit to be recognised ¼ estimated finalprofit (cost incurred to date/estimated finalcontract cost)
Estimated final contract cost ¼ £ ð275;000 þ 35;000Þ
¼£ 310;000Profit to be recognised ¼ £ ð380;000 310;000Þ