Whirly Corporation's contribution format income statement for the most recent month is shown below:

TotalPer UnitSales (7,500 units)$247,500$33.00Variable expenses142,50019.00Contribution margin105,000$14.00Fixed expenses54,200Net operating income$50,800

Required:

(Consider each case independently):

1. What would be the revised net operating income per month if the sales volume increases by 90 units?

2. What would be the revised net operating income per month if the sales volume decreases by 90 units?

3. What would be the revised net operating income per month if the sales volume is 6,500 units?