Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: Percent of Amount Sales Sales Variable expenses Fixed expenses $ 148,000 100% 59,200 40% Contribution margin 88,800 60% 19,000 Net operating income $ 69,800 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 17% increase in unit sales. 3. Construct a new contribution format income statement for the company assuming a 17% 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 17% increase in unit sales. Engberg Company Contribution Income Statement Sales Variable expenses Contribution margin Fixed expenses Net operating income Amount Percent of Sales % % 0% 0 < Required 2 Required 3 >