Whirly Corporation's contribution format income statement for the most recent month is shown below: Total Per Unit $ 32.00 Sales (7,600 units) $ 243,200 144.400 98,800 55,900 $ 42,900 19.00 Variable expenses Contribution margin Fixed expenses Net operating incomee $ 13.00 Required: (Consider each case independently): 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? 3. What would be the revised net operating income per month if the sales volume is 6,600 units? 1.Revised net operating income 2. Revised net operating income 3. Revised net operating income