Whirly Corporation's contribution format income statement for the most recent month is shown below: Total Per Unit Sales (7,400 units ) 251,600 $34.00 Variable expenses 133,200 18.00 Contribution margin 118,400 $16.00 Fixed expenses 54,100 Net operating income $64,300 Required: (Consider each cas independently): What would be the revised net operating income per month if the sales volume increases by 90 units? What would be the revised net operating income per month if the sales volume decreases by 90 units? What would be the revised net operating income per month if the sales volume is 6,400 units?

Revised net operating income

Revised net operating income

Revised net operating income