Modern Artifacts can produce keepsakes that will be sold for $94 each Nondepreciation fixed costs are $1100 per year, and variable costs are $64 per unit. The initial investment of $4,200 will be depreciated straight line over its useful life of five years to a final value of zero, and the discount rate is 12% a. What is the degree of operating leverage of Modern Artifacts when sales are $6,580? {Round your answer to 1 decimal place.) Degree of operating loverage timos b. What is the degree of operating leverage when sales are $12,220? (Round your answer to 1 decimal place.) Dogree of operating loverage timos