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 value of zero, and the discount rate is 10%.

A. What is the degree of operating leverage of Modern Artifacts when sales are $7,360?

Note: Round your answer to 1 decimal place.

B. What is the degree of operating leverage when sales are $12,880?

Note: Round your answer to 1 decimal place.