29. The systematic examination of the relationships among selling prices, volume of sales and production, costs, expenses, and profits is termed as: a. contribution margin analysis. b. cost-volume-profit analysis. c. budgetary analysis. d. gross profit analysis. analysis is used while selecting the mix of products to sell. a. Cost-volume-profit b. Activity-based c. Discounted d. Receivables 31. The costs and to provide operating income. indicates the percentage of each sales dollar available to cover fixed a. fixed cost ratio b. volume ratio c. operating ratio d. contribution margin ratio 32 is the excess of sales over variable costs. a. Fixed cost b. Contribution margin c. Operating income d. Incremental cost 33. Variable costs as a percentage of sales for Protoveo Inc. are 65%, sales are $500,000, and fixed costs are $125,000. How much would operating income change if sales decrease by $10,000? a. $3,500 increase b. $3,500 decrease c. $3,250 decrease d. $3,500 increase 34. Sales amount to $774,000, variable costs are 59% of sales, and fixed cost is $120,000. What is the contribution margin ratio? a. 37% b. 44% . 39% d. 41%