Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follows Sales Variable expenses Amount $133,000 53,200 Percen of Sales 100% 40% Contribution margin Fixed expenses 79,800 19,000 60% Net operating income 60,800 Required: 1. Compute the company's degree of operating leverage. (Round your answer to 2 decimal places.) Degree of operating leverage 2, using the degree of operating leverage, estimate the impact on net operating income of a 15% increase in sales. (Round your intermediate calculations to 2 decimal places. Round your percentage answer to 2 decimal places (i.e .1234 should be entered as 12.34).) Net operating income by Construct a new contribution format income statement for he company assuming a 15% increase in sales. 3 Engberg Company Contribution Income Statement Total 0