Answer:
Margin of Safety as percent of sales 91.21%
Step-by-step explanation:

If variable = 80% of sales then
sales - 80% sales = .20 sales = Contribution margin ratio
Next will be calcualte the BEP

800/0.2 = 4,000
Sales to achieve target income of 8,300

(800+8,300)/.2 = 45,500
Margin of safety:

