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

	Total			Per Unit
Sales (7,900 units)	$	268,600		$	34.00
Variable expenses		150,100			19.00
Contribution margin		118,500		$	15.00
Fixed expenses		55,700
Net operating income	$	62,800

(pls keep numbered for final answer)

1. What would be the revised net operating income per month if the sales volume increases by 60 units?

2. What would be the revised net operating income per month if the sales volume decreases by 60 units?

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