Find 3 things.
BEP
Profits
Margin of Safety

BEP=(fixed costs):(sales price-cost of producing)=x units to make to break even.

Profits=(Sales Revenue)-(Total Costs)=(Selling Price * Forecast Sales) - (Fixed Costs + (Forecast Sales * Variable Costs)

Margin Of Safety = Forecast Sales - BEP in units


THEN
Draft 3 diagrams:
Total Revenue
Total Costs
Fixed Costs

Outline
Profits
Margin of Safety
BEP