Costing nature and classification Flashcards
Main groupings of costing are based on…
costing and behaviour
What are product costs?
Are all of the costs associated with the purchase/production of a product:
- DM
- DL
- MOH
Are the costs included as a cost of inventory and are recorded as an asset until the product is sold, then transferred to COGS.
Product costs can be referred to as…
Prime costs and conversion costs.
Prime costs = all direct costs = DM + DL
Conversion costs = costs to convert the DM DL into the finished product = incl DL + MOH
Period costs
all the costs not classified as a product cost
- selling and admin exp,
- expensed directly to the IS.
Variable costs
Are those that vary in proportion to changes in activity
Step variable costs
Costs that vary with the level of activity, but do so at incremental levels of activity.
Ex. clothing manufacturer… labour of the manufacturing line staff may be variable, but the labour of the supervisor may be step variable cost as they oversee a max of 10 employees but when it grows to 11 another supervisor will be hired.
Fixed costs
Costs that remain constant regardless of the level of activity.
Step fixed costs
Costs that are fixed up until a certain point, at which stage they incrementally increase.
Ex. rent for a factory is fixed, but when they increase production it will need a second factory.
Mixed costs
Costs that possess both variable and fixed components
Ex. cell phone bill that has a fixed portion for monthly access to a plan but a charge per text message sent.
Cost function =
TC = (VC x activity level) + FC
Approaches to cost estimation (3)
- High low method
- Account analysis
- Regression analysis
Steps of the high low method
- Select the high and low points of activity
- Determine the VC
- Change in total cost/change in activity level
- Determine the FC by using either the high or low activity level to solve the cost function
- Determine the cost function
Pros/cons of high low method
Pros
- Easy to apply
- Does not require a lot of info to complete
- Info needed is readily available
Cons
- Uses very limited data - can lead to significant errors in expectations
- Assumes that high and low points of activity are reflective of normal activity
Regression analysis
The best method independent and dependent variables
Account analysis
- Separate costs based on f/v/m
- Mixed costs require further analysis to be f/v
- Cost function is determined by isolating FC and remaining VC/activity level to determine VC/unit
- Cost function can be developed.