Engberg Company Installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: Percent of Amount Sales Sales $ 139, 000 100% Variable expenses 55, 600 408 Contribution margin 83 , 400 608 Fixed expenses 15, 000 Net operating income $ 68, 400 Required: ices 1. What is the company's degree of operating leverage? (Round to two decimal places.) 2. Using the degree of operating leverage, estimate the percentage increase in net operating income if there is a 18% increase in unit sales. (Enter the percentage as a whole number with two decimal places, i.e., 40.25.) 3. Construct a new contribution format income statement for the company assuming a 18% increase in unit sales. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 What is the company's degree of operating leverage? (Round your answer to 2 decimal places.) Degree of operating leverage