Whirly Corporation's contribution format income statement for the most recent month is shown below. Sales (8,5ee units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 263,500 161,500 102,000 54,800 $ 47,200 Per Unit $31.ee 19.00 $ 12.ee 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 7.500 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income