Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: Percent of Amount Sales Sales $ 135.36% 13696 Variable expenses 54,366 46 Contribution margin 81,366 50* Fixed expenses 28,066 Net operating income 35 61.066 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 20% increase in unit sales. 3. Construct a new contribution format income statement for the company assuming a 20% 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 :l Required 2 > Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Using the degree of operating leverage, estimate the impact on net operating income of a 20% increase in unit sales. (Round your intermediate calculations to 2 decimal places. Round your percentage answer to 2 decimal places (Le .1234 should be entered as 12.34).) % 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 20% increase in unit sales