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: Percent of Amount Sales $ 144,000 57,600 86,400 100% 40 601 16,000 $ 70,400 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 28% increase in unit sales. 3. Construct a new contribution format income statement for the company assuming a 28% increase in unit sales. Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Answer is complete but not entirely correct. 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 28% increase in unit sales. Engberg Company Contribution Income Statement Percent of Amount Sales Sales 212,480 % 184,320 Variable expenses (73,728) 73,728 % Contribution margin 110,592 138,752 % Fixed expenses (16,000) Net operating income $94,592