Whirly Corporation's contribution format income statement for the most recent month is shown below: Total Per Unit Sales (8,600 units) $ 292, 400 $ 34.00 Variable expenses 154, 800 18.00 Contribution margin 137 , 600 $ 16.00 ed Fixed expenses 55 , 800 Net operating income $ 81, 800 OK Required (if you're having trouble figuring out how to approach this problem, see below for a hint): (Consider each case independently): It nt 1. What would be the revised net operating income per month if the sales volume increases by 70 units? 2. What would be the revised net operating income per month if the sales volume decreases by 70 units? nces 3. What would be the revised net operating income per month if the sales volume is 7,600 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income