30 points 1 Whirly Corporation's contribution format income statement for the most recent month is shown below Sales (9,000 units) Variable expenses Total $279,000 150,000 Per Unit $31.00 Contribution margin i Fixed expenses 99,000 54,600 20.00 $11.00 Net operating income $ 44,400 Required: Hart DI Prim References (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 8.000 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income