Modern Artifacts can produce keepsakes that will be sold for $250 each Nondepreciation fored costs are $3,000 per year, and variable costs are $150 per unit. The initial investment of $9,000 will be depreciated straight line over its useful life of years to a final value of zero and the discount rate is 16% a. What is the degree of operating leverage of Modern Artifacts when sales are $11250? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Degree of operating leverage b. What is the degree of operating leverage when sales are $19.500? (Do not round intermediate calculations. Round your answer 10 2 decimal places.) Degree of operating leverage c. Why is operating leverage different at these two levels of sales? Degree of operating leverage is when profits are