The following question is taken from the December 2011 exam paper.
The following shows the total overhead costs for given levels of a company's total output.
Cost Output
$ Units
4,000 1,000
7,000 2,000
10,000 3,000
9,500 4,000
A step up in fixed costs of $500 occurs at an output level of 3,500 units.
What would be the variable overhead cost per unit (to the nearest $0.01) using the high-low technique?
ACCA examining team comments
This question relates to study guide reference A3(h).
The high-low technique estimates variable cost per unit by looking at the change in costs between the highest and lowest levels of output. The correct answer is A. This can be calculated by finding the change in cost between the highest and lowest output levels not explained by the step in fixed costs ($9,500 - $4,000 - $500 = $5,000) , and dividing by the change in output between the highest and lowest output levels. ($5,000 / (4,000 units - 1,000 units) = $1.67 per unit.
Many candidates incorrectly based their calculations on the change in costs between the highest and lowest levels of cost, and hence selected option D (($10,000 - $4,000)/ (3,000 units -1,000 units) or C (($10,000 - $4,000 - $500)/ (3,000 units - 1,000 units). This mistake suggests some confusion between the independent variable, output, and the dependent variable, cost.
多做几道
Which of the following statements about management accounting information is/are true?
(i) They must be stated in purely monetary terms.
(ii) Limited companies must, by law, prepare management accounts.
(iii) They serve as a future planning tool and are not used as an historical record.
Which of the following statements is/are correct?
(i) A management control system is a term used to describe the hardware and software used to drive a database system which produces information outputs that are easily assimilated by management.
(ii) An objective is a course of action that an organisation might pursue in order to achieve its strategy.
(iii) Information is data that has been processed into a form meaningful to the recipient.
Good information should have certain qualities. Which of the following are qualities of good information?(i) Complete(ii) Extensive(iii) Relevant(iv) Accurate
Monthly variance reports are an example of which one of the following types of management information?
Which of the following statements is/are correct?
(i) Information for decision-making should incorporate uncertainty in some way
(ii) The data used to prepare financial accounts and management accounts are the
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