Hello! I'm having some trouble with this practice problem. I was able to complete some of it, but not all of it.

Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows: Percent of Sales 100% 40% 60% Amount $ 135,000 54,000 81,000 16,000 $ 65,000 Sales Variable expenses Contribution margin Fixed expenses Net operating income 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 17% increase in sales. 3. Construct a new contribution format income statement for the company assuming a 17% increase in 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 Required 1 Required 2 Required 3 Using the degree of operating leverage, estimate the impact on net operating income of a 17% increase in sales. (Do not round intermediate calculations. Round your percentage answer to 2 decimal places (i.e 0.1234 should be entered as 12.34).) Net operating income by % Required 1 Required 2 Required 3 Construct a new contribution format income statement for the company assuming a 17% increase in sales. Engberg Company Contribution Income Statement Amount Sales Variable expenses Contribution margin 0 Fixed expenses Net operating income $ 0 Percent of Sales % % 0 %