Ch. 2 An Introduction to Cost Terms and Purposes Flashcards
Cost object
- When you think of a cost, you invariably think of it in the context of putting a price on a particular thing. We call this “thing” a cost object, which is anything for which a cost measurement is desired.
- Includes cost of : Product, service, project, customer, activity, or department.
How does a cost system determine the costs of various cost objects?
2 stages:
- Accumulation: collection of cost data in some organized way by means of an accounting system. Accumulate costs in various categories (different types of materials, different classifications of labor, costs incurred by supervision)
- Assignment: accumulated costs are assigned to designated cost objects (different models of cars) by cost tracing for direct costs, or cost allocation for indirect costs.
Direct Costs
- Can be traced to it in an economically feasible (cost effective) way.
- Direct Materials: steel and tires for car
- Direct labor: workers who build the car
- Costs are assigned by cost tracing.
Indirect Costs
- Cannot be traced to it in an economically feasible (cost effective) way.
- Indirect costs: Lease for plant where multiple models of cars are made
- Indirect Materials:
- Indirect labor: Salaries of plant administration (including plant manager) who oversee production of the many different types of cars produced. They oversee the production of other products.
- Costs are assigned by cost allocation.
- The smaller the amount of a cost–that is, the more immaterial the cost is–the less likely it is economically feasible to trace it to a particular cost object.
Cost Tracing
- How Direct costs are assigned to cost objects
- Based on material requisition document
Cost Allocation
- How Indirect costs are assigned to cost objects
- No requisition document
Variable Costs
- Changes in total in proportion to changes in the related level of total activity or volume of output produced
- Stays the same per unit.
Fixed Costs
- Remains unchanged in total for a given time period, despite wide changes in the related level of total activity or volume of output produced.
- Changes per unit
Cost Driver
- A variable, such as the level of activity or volume, that causally affects costs over a given time span. (number of parts, miles driven, number of setup hours)
- An activity is an event, task, or unit of work with a specified purpose (designing products, setting up machines, or testing products)
- Variable: the cost drier of a variable cost is the level of activity or volume whose change causes proportionate changes in the variable cost
- Fixed: costs that are fixed in the short run have no cost driver in the short run but may have a cost driver in the long run.
Relevant Range
-Band or range of normal activity level or volume in which there is a specific relationship between the level of activity or volume and the cost in question.
Unit/Average Cost
- Calculated by dividing the total cost by the related number of units produced.
- Can be useful for particular decisions, but managers should think in terms of total variable costs, total fixed costs, and total costs rather than unit cost.
- If unit costs is used, actual total cost could be understated or overstated if units produced increases or decreases (pg. 37)
- As a general rule, first calculate total costs, then compute the unit cost, if it is needed for a particular decision.
3 Types of Manufacturing costs
- Direct Materials
- Direct Labor
- Manufacturing Overhead (Indirect costs)
Note for Direct Materials
-Costs of direct materials include not only the cost of the materials themselves but the freight-in (inward delivery) charges, sales taxes, and customs duties that must be paid to acquire them.
Direct manufacturing labor costs
- Include compensation of all manufacturing labor that can be traced to the cost object (WIP and then finished goods) in an economically feasible way.
- Examples include wages and fringe benefits paid to machine operators and assembly-line workers who convert direct materials to finished goods
Manufacturing Overhead (Indirect costs)
- All manufacturing costs that are related to the cost object (WIP and then finished goods) but cannot be traced to that cost object in an economically feasible way.
- Examples include: supplies, indirect materials such as lubricants, indirect manufacturing labor such as plant maintenance and cleaning labor, plant rent, plant insurance, property taxes on the plant, plant depreciation, and compensation of plant managers.