QUESTION 28 Degree of operating leverage is calculated as: a. contribution margin divided by profit b. profit divided by contribution margin O c. break-even sales divided by profit O d. profit divided by break-even sales QUESTION 29 A relevant cost is: O a. a cost that is the same regardless of the alternative the manager chooses O b. the foregone benefit of choosing to do one thing instead of another a cost that has already been incurred O d. a cost that differs across decision alternatives