Whirly Corporation's contribution format income statement for the most recent month is shown below Total 266,000 $ 35.ee 144,4009 Sales (7,600 units) Variable expenses Contribution margin Fixed expenses Net operating income 19.00 121,600 16.06 54,500 $ 67,108 Required: Consider each case independently): 1. What would be the revised net operating income per month f the sales volume increases by 80 units? 2. What would be the revised net operating income per month if the sales volume decreases by 80 units? 3 What would be the revised net operating income per month if the sales volume Is 6600 units? 1 Revised net operating income S67.100 2 Revised net operating income 3 Revised net operating income