Exercise 5-1 Preparing a Contribution Format Income Statement LO5-T Whirly Corporation's most recent income statement is shown below Sales (10,000 units) Variable expenses $ 350,000 $35.00 200,000 20.00 Contribution margin Fixed expenses 150,000 $15.00 135,000 Net operating income s 15,000 Required: Prepare a new contribution format income statement under each of the following conditions (consider each case independently): 1. The sales volume increases by 100 units. Whirly Corporation Contribution Income Statement Total Per Unit 2. The sales volume decreases by 100 units Whirly Co Contribution Income Statement Total Per Unit 3. The sales volume is 9,000 units Whirly Corporation Contribution Income Statement Total Per Unit