Scoring: Your score will be based on the number of correct matches. There is no penalty for incorrect or missing matches. Match the following terms with their definitions. Clear All Relevant range Vary in proportion to changes in activity levels Break-even point Remain the same in total dollar amount as the level of activity changes Contribution margin Where a business's revenues exactly equal costs Fixed costs A specific activity range over which the cost changes are of interest Variable costs The excess of sales revenues over variable costs