Match the following terms with their definitions. Definitions A....

Match the following terms with their definitions.

Definitions

A. Where a business's revenues exactly equal costs

B. Remain the same in total dollar amount as the level of activity changes

C. A specific activity range over which the cost changes are of interest. 

D. The excess of sales revenues over variable costs

E. Vary in proportion to changes in activity levels

Terms

1. Relevant range
2. Break-even point
3. Contribution margin
4. Fixed costs
5. Variable costs