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The accounting department for a manufacturer is which type of 2 points responsibility center? Cost Revenue Profit Investment Which of the following is a common fixed cost for a department store with 2 points five departments, each of which is treated as a profit center, with no walls or partitions dividing them? Costs of lighting the interior of the department store Salary of the department store manager Salaries of custodial staff All of the above Which of the following statements is not true about contribution margin 2 points and the components that comprise it? Contribution margin expresses the relationship between revenue and variable cost. Variable costs change in proportion to levels of activity. Contribution margin can be used as a long-run tool for management planning. Total contribution margin must exceed fixed costs before a business is profitable. Contribution margin is the excess of revenues over variable costs