Preparing a Contribution Margin Income Statement [LO1 CC1] Whirly Corporations most recent income statement is shown below: Total Per Unit Sales (12,500 units) $450,000 $36.00 Less: Variable expenses 250,000 20.00 Contribution margin 200,000 $16.00 Less: Fixed expenses 185,000 Net income $ 15,000 Required: Prepare a new income statement under each of the following conditions (consider each case independently): 1. The sales volume increases by 1,000 units. 2. The sales volume decreases by 1,000 units. 3. The sales volume is 9,250 units.