Whirly Corporations contribution format income statement for the most recent month is shown below: TotalPer UnitSales (7,900 units)$ 252,800 $ 32.00Variable expenses158,000 20.00Contribution margin94,800$ 12.00Fixed expenses54,700 Net operating income$ 40,100 Required:(Consider each case independently):

1. What would be the revised net operating income per month if the sales volume increases by 50 units?

2. What would be the revised net operating income per month if the sales volume decreases by 50 units?

3. What would be the revised net operating income per month if the sales volume is 6,900 units?