Whirly Corporation's contribution format income statement for the most recent month is shown below: Total 25 Sales (7,100 units) Variable expenses Contribution margin Fixed expenses Net operating income. Required: (Consider each case independently): $ 227,200 127,800 99,400 55,600 Per Unit $ 32.00 18.00 $ 14.00 $ 43,800 1. What would be the revised net operating income per month if the sales volume increases by 60 units? 2. What would be the revised net operating income per month if the sales volume decreases by 60 units? 3. What would be the revised net operating income per month if the sales volume is 6,100 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income