Q15-1. Cost-volume-profit analysis is a technique used to examine the relationships among the total volume of some independent variable, total costs, total revenues, and profits during a time period. It is particularly useful in the early stages of planning when it provides a framework for discussing planning issues.
Q15-4. In a contribution income statement, costs are classified according to behavior as variable or fixed, and the contribution margin (the difference between total revenues and total variable costs) that goes toward covering fixed costs and providing a profit is emphasized. In a functional income statement, costs are classified according to function (rather than behavior), such as manufacturing and selling and administrative. This is the type of income statement typically included in corporate annual reports.
E15-17
a.
Manitoba Company
Contribution Income Statement
For the Month of May 2008
Sales (6,000 $50) $300,000
Less variable costs: Direct materials (6,000 $5) $ 30,000 Direct labor (6,000 $10) 60,000 Factory overhead (6,000 $10) 60,000 Selling and administrative (6,000 $5) 30,000 (180,000)
Contribution margin 120,000
Less fixed costs: Factory overhead 40,000 Selling and administrative 20,000 (60,000)
Profit $ 60,000
b.
Note: The instructor might extend this assignment in class, computing the break-even point, the margin of safety, and the impact on profits of a change in sales.
E15-18
a. Sales $750,000 Variable costs (412,500) Contribution margin $337,500
Contribution margin ratio = $337,500/$750,000 = 0.45 Annual break-even dollar sales volume = $210,000/0.45 = $466,667
b. Annual margin of safety in dollars: Sales $750,000