Oxco’s contribution margin ratio is 40
percent. If sales are $100,000 and break-
even sales are $80,000, what is operating
income?
Margin of safety = Actual sales - Break-even sales
= $100,000 - $80,000 = $20,000
Operating Margin Contribution
Income of safety margin ratio
= $20,000 × .40
= $8,000
Therefore, the operating income is $8,000.