Whirly Corporation's contribution format income statement for the most recent month is shown below: Per Unit Sales (8,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total 240,000 152,000 88,000 55, 800 30.00 19.00 $ 11.00 $ 32,200 Required (Consider each case independently) 1. What would be the revised net operating income per month if the sales volume increases by 50 units? 2. What would be the revised net operating income per month if the sales volume decreases by 50 units? 3. What would be the revised net operating income per month if the sales volume is 7,000 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income