Exercise 5-1 (Aigo) The Effect of Changes in Sales Volume on Net Operating income [LO5-1] Whilfy Corporation's contribution format income statement for the most recent month is shown below: Aequired: (Consider each case independenty)) 1. What would be the revised net oporating income per month if the sales volume increases by 70 units? 2. What would be the revised net operating income per month if the sales volume decreases by 70 units? 3. What would be the tevised net operating income per month if the sales volume is 7.100 units