Do both questions. Q3 compulsory.

Modem Artifacts can produce keepsakes that will be sold for $100 each. Non-depreciation fixed costs are $900 per year and variable costs per unit are $80. If the project requires an initial investment of $4, 900 and is expected to last for 7 years and the firm pays no taxes, what are the accounting and NPV break-even levels of sales in terms of number of units sold? The initial investment will be depreciated straight-line over 7 years to a final value of zero, and the discount rate is 10%. What is the degree of operating leverage for Modern Artifacts in the previous problem when sales are $12,000? What is the degree of operating leverage when sales are $18,000? Why is operating leverage different at these two levels of sales