3 Whirly Corporation's contribution format income statement for the most recent month is shown below: Total Per Unit s 293,700 169,100 124,600 55,200 $ 69,400 33.00 19.00 Sales (8,900 units) Variable expenses Contribution margin Fixed expenses Net operating income 14.00 Skipped Required Consider each case independently) 1. What would be the revised net operating income per month if the sales volume increases by 40 units? 2. What would be the revised net operating income per month if the sales volume decreases by 40 units? 3. What would be the revised net operating income per month if the sales volume is 7,900 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income