Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: Sales Variable expenses Contribution margin Fixed expenses Net operating income Required: Amount $ 90,000 Percent of Sales 100% 36,000 40% 54,000 60% 40,500 $ 13,500 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. 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 Sales % 0%