Whirly Corporation's most recent income statement is shown below: Sales (8,900 units) Variable expenses TotalPer Unit $293,700 $33.00 160,200 18.00 Contribution margin Fixed expenses 133,500 $15.00 55,800 Net operating income 77,700 Required Prepare a new contribution format income statement under each of the following conditions (consider each case independently) 1. The sales volume increases by 80 units Whirly Corporation Contribution Income Statement Total Per Unit Sales Variable expenses Contribution margin Fixed expenses Net operating income 0 $ 0 0