Exercise 6-9 (Algo) Compute and Use the Degree of Operating Leverage [LO6-8] 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 $125,000 100% 50,000 40% Contribution margin 75,000 60% Fixed expenses 24,000 Net operating income $51,000 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 23% increase in unit sales. 3. Construct a new contribution format income statement for the company assuming a 23% increase in unit sales