Whirly Corporations contribution format income statement for the most recent month is shown below:

Total Per Unit

Sales (8,300 units) $ 265,600 $ 32.00 Variable expenses 157,700. 19.00 Contribution margin 107,900 $. 13.00. Fixed expenses. 55,800 Net operating income $ 52,100

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 7,300 units?