Which of the following is NOT an underlying assumption of cost-volume-profit analysis? A) We can classify expenses into fixed and variable categories. B) There will be changes in efficiency or productivity. C) Sales mix will be constant. D) Revenues and expenses are linear over the relevant range. A fraternity held a party. The following budget was prepared for 25 expected attendances. Twenty-five people attended the party. The following costs were incurred. Using the management-by-exception rule, which of the following costs deserves further examination? A) entertainment B) decorations C) room rental D) food Only major changes in the scale or scope of operations can change in future periods. Managers can vary spending levels for in the short run. A) committed fixed costs; discretionary fined costs B) committed fixed costs; capacity costs C) discretionary fixed costs; capacity costs D) capacity costs; committed fixed costs The following information is available for Donald Corporation: If total fixed costs increased to $394, 850, then the break-even volume in dollars would increase by. A) 34.3% B) 18.4% C) 12.3% D) 10.0%