EXERCISE 6-17 (30 MINUTES)

5. a. Degree of = Contribution margin = $72,000 =6

operating leverage Net operating income $12,000

b. 6.00 × 50% sales increase = 300% increase in net operating income.

Thus, net operating income next year would be: $12,000 + ($12,000

× 300%) = $48,000.