Modern Artifacts can produce keepsakes that will be sold for $$100$ each. Nondepreciation fixed costs are $$1,100$ per year, and variable

costs are $$74$ per unit. The initial investment of $$4,800$ 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 $$8,500?$

Note: Round your answer to $1$ decimal place.

b$.$ What is the degree of operating leverage when sales are $$14,500?$

Note: Round your answer to $1$ decimal place.