Whirly Corporation's contribution format Income statement for the most recent month is shown below: Total Variable expenses Sales (7,200 units) Contribution margin $ 230,400 136,800 93,600 Per Unit $ 32.00 19.00 $ 13.00 Fixed expenses Net operating income 55,400 $ 38,200 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 6,200 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income