Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: 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 sales. 3. Construct a new contribution format income statement for the company assuming a 20% increase in sales. Complete this question by entering your answers in the tabs below. What is the company's degree of operating leverage? (Round your answer to 2 decimal places.) Complete this question by entering your answers in the tabs below. Using the degree of operating leverage, estimate the impact on net operating income of a 20% round intermediate calculations. Round your percentage answer to 2 decimal places (i.e 0.1234 Complete this question by entering your answers in the tabs below. Construct a new contribution format income statement for the company assuming a 20% increa