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 Amount $ 120,000 48,000 72,000 23,000 $ 49,000 Percent of Sales 100% 40 60 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 21% increase in unit sales. 3. Construct a new contribution format income statement for the company assuming a 21% 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