Whirly Corporation's contribution format income statement for the most recent month is shown below: Total Sales (7,500 units) Variable expenses Fixed expenses Contribution margin Net operating income Required: (Consider each case independently): $ 262,500 135,000 127,500 Per Unit $ 35.00 18.00 $ 17.00 55,400 $ 72,100 1. What would be the revised net operating income per month if the sales volume increases by 80 units? 2. What would be the revised net operating income per month if the sales volume decreases by 80 units? 3. What would be the revised net operating income per month if the sales volume is 6,500 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income