Exercise 5-1 (Algo) The Effect of Changes in Sales Volume on Net Operating Income [LO5-1] Whirly Corporation's contribution format income statement for the most recent month is shown below: Sales (7,200 units) Total $ 252,000 Variable expenses 136,800 Per Unit $ 35.00 19.00 Contribution margin 115,200 $ 16.00 Fixed expenses 55,300 Net operating income $ 59,900 Required: (Consider each case independently): 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 6,200 units? 1. Revised net operating income $ 50 2. Revised net operating income $ 50 3. Revised net operating income $ 6,500