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Chapter 2

Chapter 2. Introduction to Cost Behavior and Cost-Volume Relationships. Learning Objective 1. Explain how cost drivers affect cost behavior. Cost Behavior. What is cost behavior?. It is how costs are related to, and affected by, the activities of an organization. Cost Drivers.

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Chapter 2

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  1. Chapter 2 Introduction to Cost Behavior and Cost-Volume Relationships

  2. Learning Objective 1 Explain how cost drivers affect cost behavior.

  3. Cost Behavior What is cost behavior? It is how costs are related to, and affected by, the activities of an organization.

  4. Cost Drivers What are cost drivers? Output measures of resources and activities are called cost drivers.

  5. Cost Drivers Production Example Example costs: Labor wages Supervisory salaries Maintenance wages Depreciation Energy Example cost drivers: Labor hours No. of people supervised No. of mechanic hours No. of machine hours Kilowatt hours

  6. Cost Drivers How well the accountant does at identifying the most appropriate cost drivers determines how well managers understand cost behavior and how well costs are controlled.

  7. Learning Objective 2 Show how changes in cost-driver activity levels affect variable and fixed costs.

  8. Comparison of Variable and Fixed Costs A variable cost is a cost that changes in direct proportion to changes in the cost driver. A fixed cost is not immediately affected by changes in the cost driver.

  9. Rules of Thumb Think of fixed costs as a total. Total fixed costs remain unchanged regardless of changes in cost-driver activity.

  10. Rules of Thumb Think of variable costs on a per-unit basis. The per-unit variable cost remains unchanged regardless of changes in the cost-driver activity.

  11. Relevant Range • This rule of thumb holds true only within reasonable limits. • The relevant range is the limit of cost-driver activity within which a specific relationship between costs and the cost driver is valid.

  12. Relevant Range $16,000 – $12,000 – $8,000 – $4,000 – – – Fixed Costs Relevant Range 0 500 1,000 1,500 2,000 2,500 Volume in Units

  13. Learning Objective 3 Calculate break-even sales volume in total dollars and total units.

  14. Cost-Volume-ProfitAnalysis (CVP) What is cost-volume-profit analysis? It is the study of the effects of output volume on revenue (sales), expenses (costs), and net income (net profit).

  15. CVP Scenario Per UnitPercentage Selling price $5 100 Variable cost 4 80 Difference $1 20 Total monthly fixed expenses = $8,000 Rent $2,000 Labor $5,500 Other $ 500

  16. Break-Even Point • The break-even point is the level of sales at which revenue equals expenses and net income is zero.

  17. Margin of Safety • The margin of safety shows how far sales can fall below the planned level before losses occur. Planned unit sales – Break-even unit sales = Margin of safety

  18. Break-Even Point Techniques • There are two basic techniques for computing break-even point: • Contribution margin • Equation

  19. Contribution MarginTechnique Per Unit Selling price $5 Variable cost 4 Contribution margin $1 $8,000 ÷ $1 = 8,000 units

  20. Contribution MarginTechnique 8,000 units × $5.00 = $40,000 $8,000 ÷ 20% = $40,000

  21. Equation Technique Net income equals zero at the break-even point. Sales Variable expenses – Fixed expenses – Zero net income (break-even point) =

  22. Equation Technique Let N = number of units to be sold to break even $5N – $4N – $8,000 = 0 $1N = $8,000 N = $8,000 ÷ $1 N = 8,000 Units

  23. Equation Technique Let S = sales in dollars needed to break even S – 0.80S – $8,000 = 0 .20S = $8,000 S = $8,000 ÷ .20 S = $40,000

  24. Create a cost-volume-profit graph and understand the assumptions behind it. Learning Objective 4

  25. Cost-Volume-Profit Graph Break even sales point 8,000 units or $40,000 Sales revenue line Total expense line Fixed expense line

  26. Calculate sales volume in total dollars and total units to reach a target profit. Learning Objective 5

  27. Target Net Profit Managers can also use CVP analysis to determine the total sales, in units and dollars, needed to reach a target net profit.

  28. Target Net Profit Contribution Margin Technique Target sales volume in units = Fixed expenses + Target net income Contribution margin per unit

  29. Target Net Profit Equation Technique Target sales – Variable expenses – Fixed expenses = Target net income

  30. Incremental Approach to Target Net Profit • The incremental effect is the change in total results (such as revenue, expenses, or income) under a new condition in comparison with some given or known condition.

  31. Operating Leverage • The ratio of fixed to variable costs is called operating leverage. • In high leveraged companies, small changes in sales volume result in large changes in net income. • Companies with less leverage are not affected as much by changes in sales volume.

  32. Calculate contribution margin and gross margin. Learning Objective 6

  33. Contribution Margin and Gross Margin Gross margin (which is also called gross profit) is the excess of sales over the cost of goods sold. Contribution margin is the excess of sales over all variable costs.

  34. Explain the effects of sales mix on profits. Learning Objective 7

  35. Effects of Sales Mixon Income • Sales mix is the combination of products that a business sells.

  36. Effects of Sales Mixon Income Avisha’s Dresses Example Selling price: $90 Less variable cost: 32 Equals contribution margin per dress: $58 Fixed costs = $96,000

  37. Effects of Sales Mixon Income • Assume that Avisha is considering selling blouses. • This will not require any additional fixed costs. • She expects to sell 2 blouses at $30 each for every dress she sells. • The variable cost per blouse is $19. • What is the new breakeven point?

  38. Effects of Sales Mixon Income Contribution margin per blouse: $30 – $19 = $11 What is the contribution margin of the mix? $58 + (2 × $11) = $58 + $22 = $80

  39. Effects of Sales Mixon Income $96,000 fixed costs ÷ $80 = 1,200 packages 1,200 × 2 = 2,400 blouses 1,200 × 1 = 1,200 dresses Total units = 3,600

  40. Effects of Sales Mixon Income What is the breakeven in dollars? 2,400 blouses × $30 = $ 72,000 1,200 dresses × $90 = 108,000 $180,000

  41. Effects of Sales Mixon Income What is the weighted-average budgeted contribution margin? + Blouses: 2 × $11 Dresses: 1 × $58 = $80 ÷ 3 = $26.67

  42. Effects of Sales Mixon Income The break even point for the two products is: $96,000 ÷ $26.667 = 3,600 units 3,600 × 1/3 = 1,200 dresses 3,600 × 2/3 = 2,400 blouses

  43. Effects of Sales Mixon Income Sales mix can be stated in sales dollars: DressesBlouses Sales price $90 $60 Variable costs 32 38 Contribution margin $58 $22 Contribution margin ratio 64.4% 36.6%

  44. Effects of Sales Mixon Income Assume the sales mix in dollars is 60% dresses and 40% blouses. Weighted contribution would be: 64.4% × 60% = 38.64% dresses 36.6% × 40% = 14.64% blouses 53.28%

  45. Effects of Sales Mixon Income Break even sales dollars is $96,000 ÷ 53.28% = $180,000 (rounding) $180,000 × 60% = $108,000 dress sales $180,000 × 40% = $ 72,000 blouse sales

  46. Compute cost-volume-profit relationships on an after-tax basis. Learning Objective 8

  47. Target Net Income and Income Taxes • Management of Avisha’s Dresses would like to earn an after-tax income of $35,721. • The tax rate is 30%. • What is the target operating income? • Target operating income = Target net income ÷ (1 – tax rate) • TOI = $35,721 ÷ (1 – 0.30) • TOI = $51,030

  48. Target Net Income and Income Taxes • How many units must she sell? • Revenues – Variable costs – Fixed costs = Target net income ÷ (1 – tax rate) • $90Q – $32Q – $96,000 = $35,721 ÷ 0.70 • $58Q = $51,030 + $96,000 • Q = $147,030 ÷ $58 • Q = 2,535 dresses

  49. Target Net Income and Income Taxes Revenues (2,535 × $90) $228,150 Variable costs (2,535 × $32) 81,120 Contribution margin: $147,030 Fixed costs: 96,000 Operating income: $ 51,030 Income taxes: ($51,030 × .30) 15,309 Net income $ 35,721

  50. Understand how cost behavior and cost-volume-profit analysis are used by managers. Learning Objective 9

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