Understand standard costing and performance control
Compare planned standard costs and revenues with actual results, then use differences to investigate performance.
Cambridge International AS & A Level Accounting 9706, 2026–2028 syllabus, Version 2. Topic 4.2 teaches standard costing, the listed material, labour, fixed-overhead and sales variances, their causes and relationships, and evidence-based business decisions. Practice is self-checked, not an official Cambridge grade. Full timed Papers 1–4 and human subject-teacher review remain outstanding.
Before you begin
- Use Topic 2.1–2.2 cost behaviour, contribution and absorption-costing ideas. In each question, identify the period, actual output, budget and standard before calculating a variance.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
Why compare actual performance with a standard?
What you will learn
- Explain a standard-costing system
- Describe benefits and limitations
- Connect variance investigation to performance improvement
Standards provide a reasoned comparison
A standard is a predetermined cost or revenue for a stated activity and period. A standard-costing system records actual results and compares them with the standards to identify variances. A useful standard is based on current, relevant information about expected prices, quantities, rates and operating conditions.
The comparison must use a consistent basis. If output changes, compare actual input with the input allowed for the actual output; otherwise a change in volume can be mistaken for inefficiency. Record the assumptions and period used so that managers can interpret the result.
A variance is a question to investigate
Variance analysis can focus attention, support accountability and improve future estimates. It can also be timely and easy to communicate when standards and records are clear. Standards that are outdated, unrealistic or imposed without consultation can instead demotivate staff or encourage unwanted shortcuts.
A favourable cost variance is not automatically a success: it may reflect cheaper, lower-quality material or reduced training. An adverse variance can be caused by an external price shock rather than poor control. Look for causes, relationships and relevant non-financial evidence before recommending action.
Pause and explain
A favourable material-price variance is reported. What is the sound next step?
Worked example
A factory compares actual material cost with a standard for the units it actually produced. Explain what the comparison can show and what it cannot prove by itself.
Show the worked solution
- The comparison can quantify how actual material cost differs from the cost allowed by the standard.
- Price and usage analysis can help identify where to investigate.
- The amount alone does not establish the cause, who controlled it or whether quality and output were protected.
Answer It identifies a cost difference for investigation. Managers need supporting evidence about prices, quantities, output, quality and operating conditions before assigning a cause or deciding what to change.
Try a topic test
Choose Easy, Normal or Difficult. Save your answers and open worked review after finishing.
Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
Standard cost for actual output is $48,000 and actual cost is $50,300. State the cost variance and one next check.
Give me a hint
Compare actual cost with the standard allowed for actual output.
Compare my reasoning
- Actual cost exceeds the allowed standard by $2,300.
- For a cost, the excess is adverse.
- Check the component price and usage variances before attributing the difference.
$2,300 adverse. The total flags an overspend; separate price and usage and inspect the underlying records before acting.
Look for these in your work
- Compare the same output basis
- Calculate $2,300 excess
- Label cost direction and investigate
A manager says a favourable cost variance proves efficiency improved. Correct the statement.
Give me a hint
Ask whether the variance identifies a cause and whether quality or other costs changed.
Compare my reasoning
- The variance shows actual cost was below the applicable standard.
- It does not establish why the difference occurred.
- Check quality, usage, output, delivery and linked variances before calling it an efficiency gain.
The variance is favourable as a cost comparison, but it does not by itself prove efficiency improved. Lower quality or higher waste could offset a lower purchase price.
Look for these in your work
- Meaning of favourable stated
- Cause not assumed
- Relevant linked measures included
A clinic uses a factory-style standard for staff time per appointment. What should it check before relying on the variance?
Give me a hint
Test whether a unit standard suits the service and accounts for case complexity.
Compare my reasoning
- Check that appointment types and patient needs are comparable.
- Inspect waiting time, quality, safety and incomplete work as well as minutes used.
- Revise the standard if workload or service requirements have changed.
The clinic should test whether appointments are comparable and include service quality and safety. A time variance alone could reward rushed or incomplete care.
Look for these in your work
- Context tested
- Non-financial quality included
- Standard review proposed
Common mistakes
- Treating a variance as proof of fault
- Comparing actual input with the master-budget quantity after output has changed
- Calling every favourable cost variance beneficial
What can you explain now?
What is the main role of a standard in standard costing?
Compare with the explanation
It provides a predetermined basis for comparison with actual results
A standard makes a like-for-like comparison possible; it does not ensure the target is met.
After trying it yourself, choose your next review. This is your self-assessment.
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Make it stick
What can a variance signal, and what must evidence establish before a decision?
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.