Lecture 5 Flashcards
Cost Accounting Cost Models
What are the typical classification of costs?
Product allocation (direct and indirect)
Cost behaviour (fixed, variable, semi-fixed, semi-variable)
Product focus (product, period)
Future Costs (relevant, irrelevant)
Unit costs (incremental, marginal)
Other costs (sunk, opportunity)
Define direct costs
Costs that can be specifically and exclusively identified with a particularly cost object (direct materials and labour)
Define indirect costs
Costs that cannot be specifically and exclusively identified with a particular cost object (overhead costs)
What are some examples of indirect costs?
Personal Protective Equipment
Electricity
Recruitment Costs
What are examples of fixed costs?
Salaries
Rent
What are examples of variable costs?
Materials
Sales commission
Petrol
(as activity level increases, cost increases)
What is an example of a semi-fixed cost?
Additional capacity to cope with increased activity
What is an example of a semi-variable cost?
Cost of maintenance
where planned maintenance can be fixed, but additional unplanned maintenance would be a variable element
With regards to product focus: define product and period
Product - Costs that are identified with goods purchased or produced for resale. Costs that are included in the inventory valuation for finished or partly finished goods.
Period - Costs that are not included in the inventory valuation and as a result are treated as expenses in the period they incur
With regards to future focus: define relevant costs.
Future costs that will be affected by a decision. For example future orders that haven’t yet been accepted or new hires
With regards to future focus: define irrelevant costs.
Future costs that will not be affected by a decision (cost of material in stock)
With regards to unit costs: define incremental costs
The differences between costs under each alternative being considered. For example, additional cost of producing an extra 100 units per week
With regards to unit costs: define marginal costs
Additional cost of one extra unit from a group of additional units output
What is a sunk cost?
Costs that have been created by a decision made in the past and cannot be changed by any decision that will be made in the future
What is an opportunity cost?
Costs that measures the opportunity that is lost or sacrificed when the choice of one course of action requires that an alternative course of action must be given up