Whirly Corporation's contribution format income statement for the most recent month is shown below: Total $287,000 164,000 123,000 54,200 $ 68,300 Per Unit $35.00 20.00 $ 15.00 Sales (8.200 units) Variable expenses Contribution margin Tixed expenses Net operating income Required: (Consider each case independently): 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 7,200 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income