Modern Artifacts can produce keepsakes that will be sold for $92 each. Nondepreciation fixed costs are $1,100 per year, and variable costs are $66 per unit. The initial investment of $4,200 will be depreciated straight-line over its useful life of five years to a final val in of zero, and the discount rate is 10%. a. What is the degree of operating leverage of Modern Artifacts when sales are $7,360 ? (Round your answer to 1 decimal place.) What is the degree of operating leverage when sales are $12,880 ? (Round your answer to 1 decimal place.)