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Following is the income statement for Monet Mufflers for the month of June 2024: (Click the icon to view the contribution margin income statement.) Read the requirements. Requirement 1. Calculate the degree of operating leverage. (Round to four decimal places.) Select the labels and enter the amounts to calculate the degree of operating leverage for Monet Mufflers. Data table Requirements 1. Calculate the degree of operating leverage. (Round to four decimal places) 2. Use the degree of operating leverage colculated 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.) 3. Verify your answer in Requirement 2 by preparing a contribution margin income statement with the total sales increase of 20%