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Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: 96,000 38,400 57 , 600 44, 160 Sales Variable expenses Contribution margin Fixed expenses Net operating income Required: Amount 13,440 Percent of Sa les 100% 40 1. What is the company's degree of operating leverage? 2. Using the degree of operating leverage, estimate the impact on net operating income of a 7% increase in unit sales. 3. Construct a new contribution format income statement for the company assuming a 7% increase in unit sales. Answer is not complete. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Construct a new contribution format income statement for the company assuming a 7% increase in unit sales. Engberg Company Contribution Income Statement Amount Percent of sale Sales Variable expenses Contribution margin Fixed expenses Net operating income Required 2 0/0 0/0 0/0 Required