Whirly Corporation's contribution format income statement for the most recent month is shown below: Sales (8,200 units) Contribution margin. Variable expenses Fixed expenses Net operating income Required: Total $ 246,000 Per Unit $ 30.00 164,000 82,000 20.00 $ 10.00 55,300 $ 26,700 (Consider each case independently): 1. What would be the revised net operating income per month if the sales volume increases by 100 units? 2. What would be the revised net operating income per month if the sales volume decreases by 100 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 t