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

	Total	Per Unit
Sales (8,700 units)	$ 295,800	$ 34.00
Variable expenses	174,000	20.00
Contribution margin	121,800	$ 14.00
Fixed expenses	54,300
Net operating income	$ 67,500

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 7,700 units?