Match the following terms (a-e) with their definitions. Indicates the possible decrease in sales that may occur before operating loss results Contribution margin divided by income from operations Graphically shows costs, sales, and operating profit or loss at various levels of units sold Plots only the difference between total sales and total costs The relative distribution of sales among products sold by a company a. Profit-volume chart b. Cost-volume-profit chart C. Sales mix d. Operating leverage e. Margin of safety