Exercise 18-24 (30 minutes)
1. Prepare a contribution margin income statement for Co. A to compute its DOL;
2. Prepare a contribution margin income statement for Co. B to compute its DOL;
3. Analyze and interpret which company benefits more from a 20% sales increase.
Step 1.
Contribution Margin Income Statement
Sales (given)…………………………………………………………………..
Variable costs [$6,000,000 x (100% – 60%)] ………………………
Contribution margin ($6,000,000 x 60%) ………………………….
Fixed costs (given) ………………………………………………………...
Pretax income …………………………..……………………………………
Contribution margin in dollars / Pretax income
Step 2.
Contribution Margin Income Statement
Sales (given)…………………………………………………………………..
Variable costs [$4,500,000 x (100% – 25%)] ………………………
Contribution margin ($4,500,000 x 25%) ………………………….
Fixed costs (given) ………………………………………………………...
Pretax income …………………………..……………………………………
Contribution margin in dollars / Pretax income
Step 3.
Interpretation: Company A benefits more from a 20% increase in sales.
1.5 x 20%). Note that although Company A’s fixed costs are higher, its