- 1. Chapter 2 Introduction to Management Accounting Introduction
to Cost Behavior and Cost-Volume Relationships
2. Cost Drivers and Cost Behavior Traditional View of Cost
Behavior Activity-Based View of Cost Behavior Resource A Cost
Driver =Units ofResource Output Resource B Cost Driver =Units
ofResource Output Activity A Cost Driver =Units ofActivity Output
Activity B Cost Driver =Units ofActivity Output Resource B Cost
Driver =Units ofResource Output Resource A Cost Driver =Units
ofResource Output Product or Service Cost Driver = Units of Final
Product or Service Product or Service Cost Driver = Output of Final
Product or Service Learning Objective 1 3. Cost Drivers and Cost
BehaviorCost behavior is how the activitiesof an organization
affect its costs. Any output measure that causes the use of costly
resources is a cost driver. 4. Value Chain Functions, Costs, and
Cost Drivers
- Value Chain Function and Example Costs Example Cost
Drivers
- Salaries marketing research personnelNumber of new product
proposals
- Salaries of product and process engineersComplexity of proposed
products
- Design of products, services, and processes
- Salaries of product and process engineers Number of engineering
hours
- Cost of computer-aided design equipment Number of parts per
product
- Cost to develop prototype of product
5. Value Chain Functions, Costs, and Cost Drivers
- Value Chain Function and Example Costs Example Cost
Drivers
- Supervisory salaries Number of people supervised
- Maintenance wages Number of mechanic hours
- Depreciation of plant and machinery Number of machine
hours
- Energy cost Kilowatt hours
- Cost of advertisementsNumber of advertisements
- Salaries of marketing personnel, Sales dollars
- travel costs, entertainment costs
6. Value Chain Functions, Costs, and Cost Drivers
- Value chain function and Example costs Example Cost
Drivers
- Wages of shipping personnelLabor hours
- Transportation costs includingWeight of items delivered
- depreciation of vehicles and fuel
- Salaries of service personnelHours spent servicing
products
- Costs of supplies, travel Number of service calls
7. Variable and Fixed Cost Behavior Avariable cost changes in
directproportion to changesin the cost-driver level. Afixed
costisnot immediatelyaffected by changesin the cost-driver. Think
of variablecosts on a per-unit basis. The per-unit variablecost
remains unchangedregardless of changes inthe cost-driver. Think of
fixed costson a total-cost basis. Total fixed costs remainunchanged
regardless ofchanges in the cost-driver. Learning Objective 2 8.
Relevant Range The relevant range is the limit of cost-driver
activity level within which a specific relationship between costs
and the cost driver is valid. Even within the relevant range, a
fixedcost remains fixed only over a givenperiod of time Usually the
budget period. 9. Fixed Costs and Relevant Range 20406080100
$115,000 100,000 60,000 Total Cost-Driver Activity in Thousandsof
Cases per Month Total Monthly Fixed Costs $115,000 100,000 60,000
20406080100 Relevant range 10. CVP Scenario Per UnitPercentage of
SalesSelling price $1.50 100% Variable cost of each item 1.20 80
Selling price less variable cost $.30 20% Monthly fixed expenses:
Rent $3,000 Wages for replenishing and servicing 13,500 Other fixed
expenses1,500 Total fixed expenses per month$ 18,000
Cost-volume-profit (CVP) analysis is the study of the effects of
outputvolume on revenue (sales), expenses (costs), and net income
(net profit). 11. Break-Even Point The break-even point is the
level of sales at whichrevenue equals expenses and net income is
zero. Sales- Variable expenses -Fixed expenses Zero net income
(break-even point) Learning Objective 3 12. Contribution Margin
Method $18,000 fixed costs $.30 = 60,000 units (break even)
Contribution margin Per Unit Selling price $1.50Variable costs
1.20Contribution margin $.30Contribution margin ratio Per Unit %
Selling price 100Variable costs .80Contribution margin .20 13.
Contribution Margin Method $18,000 fixed costs 20%
(contribution-margin percentage) = $90,000 of sales to break even
60,000 units $1.50 = $90,000 in sales to break even Or 14. Equation
Method Sales variable expenses fixed expenses = net income $1.50N
$1.20N $18,000 = 0 $.30N = $18,000 N = $18,000 $.30 N = 60,000
Units Let N = number of units to be sold to break even. 15.
Equation Method S .80S $18,000 = 0 .20S = $18,000 S = $18,000 .20 S
= $90,000 Let S = sales in dollars needed to break even. Shortcut
formulas: Break-even volume in units =fixed expenses unit
contribution margin Break-even volume in sales =fixed expenses
contribution margin ratio 16. Cost-Volume-Profit Graph
18,00030,00090,000120,000138,000$150,0000 10 20 30 40 50 60 70 80
90 100 Units (thousands) Dollars 60,000Total Expenses Sales Net
Income Area Break-Even Point 60,000 unitsor $90,000 Net Loss Area A
C D B Fixed Expenses Variable Expenses Net Income Learning
Objective 4 17. Target Net Profit Managers use CVP analysisto
determine the total sales,in units and dollars, neededTo reach a
target net profit. Target salesvariable expensesfixed
expensestarget net income $1,440 per monthis the minimum acceptable
net income. Learning Objective 5 18. Target Net Profit Target sales
volume in units = (Fixed expenses + Target net income) Contribution
margin per unit ($18,000 + $1,440) $.30 = 64,800 units Selling
price $1.50Variable costs 1.20Contribution margin per unit
$.30Target sales dollars = sales price X sales volume in units
Target sales dollars = $1.50 X 64,800 units = $97,200. 19. Target
Net Profit Sales volume in dollars =18,000 + $1,440 = $97,200.20
Target sales volume in dollars =Fixed expenses + target net income
contribution margin ratio Contribution margin ratio Per Unit %
Selling price 100Variable costs .80Contribution margin .20Or 20.
Operating Leverage Operating leverage: a firms ratio of fixed costs
to variable costs.Margin of safety = planned unit sales break-even
salesHow far can sales fall below the planned level before losses
occur? Highly leveraged firmshave high fixed costs and low variable
costs.A small change in sales volume = a large change in net
income. Low leveraged firmshave lower fixed costs and higher
variable costs.Changes in sales volume will have a smaller effect
on net income. 21. Contribution Margin and Gross Margin Sales price
Cost of goods sold = Gross margin Sales price - all variable
expenses = Contribution margin Per Unit Selling price $1.50
Variable costs (acquisition cost) 1.20 Contribution margin andgross
margin are equal $.30 Learning Objective 6 22. Contribution Margin
and Gross Margin ContributionGrossMarginMargin Per Unit Per
UnitSales $1.50 $1.50Acquisition cost of unit sold 1.20
1.20Variable commission .12 Total variable expense$1.32
Contribution margin .18Gross margin $.30Suppose the firm had to pay
a commission of $.12per unit sold. 23. Nonprofit Application
Suppose a city has a $100,000 lump-sum budget appropriation to
conduct a counseling program. Variable costs per prescription is
$400 per patient per day. Fixed costs are $60,000 in the relevant
range of 50 to 150 patients. 24. Nonprofit Application If the city
spends the entire budget appropriation, how many patients can it
serve in a year? $100,000 = $400N + $60,000 $400N = $100,000
$60,000 N = $40,000 $400 N = 100 patients 25. Nonprofit Application
If the city cuts the total budget Appropriation by 10%, how
manyPatients can it serve in a year? $90,000 = $400N + $60,000
$400N = $90,000 $60,000 N = $30,000 $400 N = 75 patients
Budgetafter 10% Cut $100,000 X (1 - .1) = $90,000 26. Sales Mix
Analysis Sales mix is the relative proportions or combinations of
quantities of products that comprise total sales. Learning
Objective 7 27. Sales Mix Analysis Ramos Company Example Sales in
units 300,000 75,000 375,000 Sales @ $8 and $5$2,400,000 $375,000
$2,775,000 Variable expenses @ $7 and $3 2,100,000 225,000
2,325,000Contribution margins @ $1 and $2 $300,000 $150,000
$450,000 Fixed expenses 180,000Net income $270,000Wallets (W) Key
Cases (K) Total 28. Sales Mix Analysis Break-even point for a
constant sales mixof 4 units of W for every unit of K. sales
variable expenses - fixed expenses = zero net income [$8(4K) +
$5(K)] [$7(4K) + $3(K)] $180,000 = 032K + 5K - 28K - 3K - 180,000 =
0 6K = 180,000K = 30,000 W = 4K = 120,000Let K = number of units of
K to break even, and 4K = number of units of W to break even. 29.
Sales Mix Analysis If the company sells only key cases: break-even
point =fixed expenses contribution margin per unit =$ 180,000 $2 =
90,000 key casesIf the company sells only wallets: break-even point
=fixed expenses contribution margin per unit =$ 180,000 $1 =
180,000 wallets 30. Sales Mix Analysis Suppose total saleswere
equal to thebudget of 375,000 units. However, Ramos soldonly 50,000
key cases And 325,000 wallets. What is net income? 31. Sales Mix
Analysis Ramos Company Example Sales in units 325,00050,000
375,000Sales @ $8 and $5 $2,600,000 $250,000 $2,850,000Variable
expenses @ $7 and $3 2,275,000 150,000 2,425,000Contribution
margins @ $1 and $2 $325,000 $100,000 $425,000Fixed expenses
180,000Net income $245,000Wallets (W) Key Cases (K) Total 32.
Impact of Income Taxes Suppose that a company earns $480 before
taxes and pays income tax at a rate of 40%. What is the after-tax
income? Learning Objective 8 33. Impact of Income Taxes Target
income before taxes =Target after-tax net income 1 tax rate Target
income before taxes =$ 288= $4801 0.40Suppose the target net income
after taxes was $288. 34. Impact of Income Taxes Target sales
Variable expenses Fixed expenses = Target after-tax net income (1
tax rate) $.50N $.40N $6,000 = $288 (1 0.40) $.10N = $6,000 +
($288/.6) $.06N = $3,600 + $288 = $3,888N = $3,888/$.06N = 64,800
units 35. Impact of Income Taxes Suppose target net income after
taxes was $480 $.50N $.40N $6,000 = $480 (1 0.40) $.10N = $6,000 +
($480/.6)$.06N = $3,600 + $480 = $4080 N = $4,080 $.06N = 68,000
units 36. The End End of Chapter 2