Whirly Corporation's contribution format income statement for the most recent month is shown below. Total $ 281,600 167,200 114.400 55.ee $ 59,400 Per Unit $ 92.00 19.80 $ 13.00 Sales (8,see units) Variable expenses Contribution margin Fixed 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 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 7.800 units? 1. Revised net operating income 2 Revised not operating income 3. Revised not operating income