Topic module

Cost Classification and Behaviour

Direct, indirect, fixed, variable, stepped and semi-variable costs, high-low and relevant costs.

Long-form learning
Concept to Risk to Memory to Check-up

How to study the CIMA Certificate

Secure each subject's concepts and calculations before using short business scenarios for application. Static study assets do not reproduce every computer-marked interaction or combine the four subjects into one official examination.

Core concepts

Concept 1

Classify costs for purpose and activity.

Exam cue: State the cost object.

Concept 2

Estimate cost behaviour.

Exam cue: Split fixed and variable elements.

Concept 3

Select relevant incremental costs for decisions.

Exam cue: Ask whether the cash flow changes with the decision.

Risk pitfalls and guardrails

Calling all labour variable.

Guardrail: Do not combine subjects, treat the 0-150 scale as a percentage, or rely on a remembered label without checking timing, units, assumptions and facts.

Using average cost as marginal cost.

Guardrail: Do not combine subjects, treat the 0-150 scale as a percentage, or rely on a remembered label without checking timing, units, assumptions and facts.

Including sunk costs in future decisions.

Guardrail: Do not combine subjects, treat the 0-150 scale as a percentage, or rely on a remembered label without checking timing, units, assumptions and facts.

Memory anchors

Direct cost

A direct cost can be traced economically to a cost object.

Relevant cost

A relevant cost is a future cash flow that changes between alternatives.

High-low

High-low estimates variable cost from the change in cost divided by change in activity.

Checkpoint rule

Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.

Knowledge Check (after reading)

Short check-up to confirm understanding of this module.

Check-up Questions

1-2 question checkpoint

Which cost is direct material for a furniture manufacturer?

Which cost is indirect labour in a manufacturing department?

Answer all questions to submit.

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