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CMA Foundation · Fundamentals of Financial and Cost Accounting · Cost, Cost Centre, Cost Unit and Cost Drivers

In a cost accounting system, a cost driver is best described as:

A cost driver is a factor that causes the cost of an activity to change, for example machine hours, number of set-ups or purchase orders. It is not the cost unit or cost centre, which describe the unit measured and the location where costs are accumulated.

  1. AA factor that causes a change in the cost of an activityCorrect
  2. BThe unit of product for which cost is ascertained
  3. CA segment of the organisation to which costs are charged
  4. DThe total of all fixed costs of a period

Explanation

A cost driver is the factor or event that causes the cost of an activity to change, such as number of set-ups or machine hours. A cost unit is the measurement unit and a cost centre is the location or function, so the other options describe different terms.

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