1 Whirly Corporation's contribution format income statement for the most recent month is shown below: 2 points Sales (7,100 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 220,100 134,900 85,200 55,900 $ 29,300 Per Unit $ 31.00 19.00 $ 12.00 eBook Hint Print References Required: (Consider each case independentis 1. What would be the revised net operating income per month if 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 6,100 units? 1. Revised net operating income 2. Revised net operating income 3. Revised not operating income 2 Last month when Holiday Creations, Inc., sold 40,000 units, total sales were $160,000, total variable expenses were $123,200, and fixed expenses were $39,900 1 points Required: 1. What is the company's contribution margin (CM) ratio? 2. What is the estimated change in the company's net operating income if it can increase sales volume by 700 units and total sales by $2,800? (Do not round Intermediate calculations.) eBook Hint Print 1. Contribution margin ratio 2. Estimated change in net operating income References