Whirly Corporation's contribution format income statement for the most recent month is shown below: Per Unit $ 35.00 20.00 $15.00 Sales (8,700 units) Variable expenses Contribution margin Fixed expenses Net operating income Required: (Consider each case independently): Total $ 304,500 174,000 130,500 54,700 $ 75,800 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 7,700 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income