Read the requirements Select the labels and enter the amounts to calculate the degree of operating leverage for Monroe Mufflers Contribution margin Operating income = Degree of operating leverage 14,000 500 28.0000 Requirement 2. Use the degree of operating leverage calculated in Requirement 1 to estimate the change in operating income if total sales increase by 20% (assuming no change in sales price per unit). (Round interim calculations to four decimal places and final answer to the nearest dollar.) The estimated change in operating income will be $ 2,800 Requirement 3. Verify your answer in Requirement 2 by preparing a contribution margin income statement with the total sales increase of 20%. Monroe Mufflers Contribution Margin Income Statement Month Ended June 30, 2018 Net Sales Revenue Variable Costs Contribution Margin Fixed Costs Operating Income Er war in the artit field and then cho Ansor i Data Table - X Monroe Mufflers Contribution Margin Income Statement Month Ended June 30, 2018 Net Sales Revenue (280 units x $225) $ 63,000 49,000 Variable Costs (280 units x $175) Contribution Margin 14,000 13,500 Fixed Costs $ 500 Operating Income Print Done