Following is the income statement for Muellet Muffiets for the month of June 2024 (Click the icon to view the contribution margin income statement) Read the tequirements Requirement 1. Calculate the degree of operating levernge (Round to four decirnal places) Select the labels and enter the amounts to calculate the degren of operating leverage for Mueller Mufflers. Degree of operating leverage = Requirement 2. Use the degree of operating leverage calcudated in Requirement 1 to estimate the change in operating income if total sales increase by 10% (assumting 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 Requirement 3. Verify your answer in Requiremant 2 by proparing a contribution margin inoome statement with the total sales increase of 10% Data table