Answer:
1. amount of sales = $243,000
2. margin of safety = 33.3%
Explanation:
1) required contribution margin = fixed costs + target pretax income
= 324000 + 162000
= $486,000
amount of sales = required contribution margin/ contribution margin ratio
= $486,000/20%
= $243,000
2) break-even sales = 324000/20%
= $1620000
margin of safaty sales = $2430000 - 1620000
= $810000
margin of safety = 810000/2430000
= 33.3%