Costing is the identification of the value of resources used for specified goods or services. One purpose of costing is to determine what resources were required to provide the goods or services. A second purpose is to provide a guide to resource usage through the use of budgets that clearly identify managers' responsibility. It is the second purpose that is considered in the following discussion.

Methods of Costing Identified in Budgets

Budget figures may be based on actual, budgeted, or standard costs. These categories are not mutually exclusive. For example, while a standard cost is a budgeted cost, a budgeted cost is not always a standard cost. An actual cost may or may not be the budgeted cost.

Budgets based on actual costs reflect expenditures anticipated for the level of resource use. Budgeted costs are generally described as the best estimate about what should be allowed...