Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: Percent of 5 Amount Sales hts Sales Variable expenses $144,000 100% 57,600 40% Skipped Contribution margin 86,400 60% Fixed expenses 20,000 eBook Hint Net operating income $ 66,400 Required: 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 15% increase in unit sales. 3. Construct a new contribution format income statement for the company assuming a 15% increase in unit sales, Complete this question by entering your answers in the tabs below. Print Required 1 Required 2 Required 3 ferences What is the company's degree of operating leverage? (Round your answer to 2 decimal places.) Degree of operating leverage