Importance Of Cost Behaviour Analysis

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In management accounting, cost management has a crucial role and finds its foundations in understanding “cost behaviour”. “Cost behaviour analysis” can be defined as “the study of how cost changes when there is a change in an organisation’s level of activity”. (Definition https://www.accountingcoach.com/blog/what-is-cost-behavior).
Managers need to analyse the behaviour of three different types of costs:
- Fixed costs;
- Variable costs;
- Semi- Variable (or mixed) costs.

A “Fixed cost” can be defined as “a cost that does not change with an increase or decrease in the amount of goods or services produced or sold”. It is time related.
(Definition http://www.investopedia.com/terms/f/fixedcost.asp).
“Fixed costs remain constant as they are not …show more content…

The term “fixed” refers only to the fact that this cost does not change based on the volume. However, it does not mean that it is static and constant forever, but only for a relevant range of volume.
“For example, if the organisation decide to expand, fixed costs will definitely increase. Sometimes, organisations decide to reduce certain fixed costs to improve their cash flow, by moving to a less expensive workplace or reducing the number of employees”. …show more content…

Additionally, there are semi –variable (or mixed) costs. A “semi-variable cost” is a “cost that has both fixed and variable components. This cost is fixed for a set amount of produced products or sold services and becomes variable after this amount of production/sales is exceeded. If no production occurs, the fixed component still occurs”. (Definition http://www.investopedia.com/terms/s/semivariablecost.asp).
Perfect example of semi-variable cost are the utilities, that are determined by a monthly flat rate as per contract and an overage charge based on usage. A semi variable cost with lower fixed component is favourable for the organisation as it requires a lower break-even point.
The terms variable and fixed costs related to a hotel are used to distinguish between those costs that have or do not have a direct relationship to occupancy.
Considering my specific area of work (Room Division),
- examples of fixed costs are: annual salaries (i.e. Director of Rooms’ salary, paid irrespective of the number of hours worked), yearly external auditing cost, licenses and permits, training cost, out-sourced services contracted for a monthly fixed

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