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 $ 145,000 58,000 87,000 16,000 $ 71,000 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 24% increase in sales. 3. Construct a new contribution format income statement for the company assuming a 24% increase in 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 24% increase in sales. Engberg Company Contribution Income Statement Amount Percent of Sales : % Sales Variable expenses Contribution margin % 0 0 % Fixed expenses Net operating income $ 0