OxfordAQA A-Level Accounting: Standard costing and variance analysis (9615) – Revision Notes

For full explanations and two worked examples, start with the study guide.

These notes cover section 3.2.1 Standard costing and variance analysis of the OxfordAQA International AS and A-level Accounting (9615) specification, Version 1.2, for International AS exams May/June 2025 onwards and International A-level exams May/June 2026 onwards. The section is International A-level only and the specification assesses it on Paper 4: Accounting for analysis and decision making. Amounts are in dollars; all businesses are invented.

Links: course hub · printable checklist · practice questions · free 10-minute diagnostics. Contribution comes from marginal costing; simple budget-versus-actual comparisons are in budgeting.

3.2.1 at a glance

The specification lists four content statements:

1. Purpose of a standard costing system, with its advantages and disadvantages (terms: standard cost, variance analysis).
2. Calculation and interpretation of variances: materials (price and usage), labour (efficiency and rate), sales (volume and price).
3. The interrelationship between variances.
4. Statements reconciling budget and actual cost, and budget and actual profit.

Key terms

Term	Meaning
Standard cost	Cost of one unit worked out in advance from planned quantities and prices, assuming efficient working
Standard cost card	The build-up of that cost: kg × price per kg, hours × rate per hour
Variance analysis	Measuring the gap between standard and actual, splitting it into price and quantity parts, and explaining it
Favourable (F)	Leaves profit higher than the standard result
Adverse (A)	Leaves profit lower than the standard result
Flexing	Restating the standard for the actual level of output
Management by exception	Investigating only significant or recurring variances

Purpose, advantages and disadvantages

Purpose: planning and control. Targets are set in advance; actual results are measured against them; managers act on the differences.

Advantages	Disadvantages
Each variance has an owner, so accountability is clear	Setting and maintaining standards costs time and money
Management by exception saves managers’ time	Out-of-date standards give misleading variances
Standard costs support budgets and pricing	Suits repetitive output, not one-off work
Agreed targets can motivate	Unrealistic targets demotivate; managers may protect their own variance
Inventory can be valued at standard	Reports come after the event
Setting standards reveals waste	Ignores non-financial measures such as quality

Variance formulas

SP = standard price, AP = actual price, SQ = standard quantity for actual output, AQ = actual quantity, SR = standard rate, AR = actual rate, SH = standard hours for actual output, AH = actual hours.

Variance	Usually answerable	Formula
Materials price	Purchasing manager	AQ × (SP − AP)
Materials usage	Production manager	SP × (SQ − AQ)
Total materials		standard cost of actual output (SQ × SP) minus actual spend
Labour rate	Personnel or whoever sets pay	AH × (SR − AR)
Labour efficiency	Production supervisor	SR × (SH − AH)
Total labour		standard labour cost of actual output (SH × SR) minus actual spend
Sales price	Sales manager	units actually sold × (actual selling price − standard selling price)
Sales volume	Sales manager	standard contribution per unit × (units actually sold − units in budget)

Positive answer = F, negative = A, with the formulas written as above. Check direction with common sense too: paying more, using more or selling fewer is adverse.

Method in steps

1. Divide each actual cost by the actual kg or hours to get AP and AR.
2. Flex: multiply actual output by the standard kg per unit (SQ) and by the standard hours per unit (SH).
3. For price and rate, multiply the unit difference by actual kg or hours.
4. For usage and efficiency, value the quantity difference at the standard price or rate.
5. Check that the two materials variances sum to the total, and likewise the two labour variances.
6. Label every variance F or A.
7. Interpret: give a likely cause, the manager responsible, and whether it matters.

Small worked reminder: Bramcote Mugs

Standard per mug: 5 kg of clay at 1.20, and 0.4 hours at 14.00. Output 640 mugs. Actual: 3,120 kg of clay costing 3,900; 270 hours costing 3,672.

AP = 3,900 ÷ 3,120 = 1.25          AR = 3,672 ÷ 270 = 13.60
SQ = 640 × 5 = 3,200 kg            SH = 640 × 0.4 = 256 hours
Price      = (1.20 − 1.25) × 3,120 = 156 A
Usage      = (3,200 − 3,120) × 1.20 = 96 F      Total materials 60 A
Rate       = (14.00 − 13.60) × 270 = 108 F
Efficiency = (256 − 270) × 14.00 = 196 A        Total labour 88 A

Reading: dearer clay but less waste; cheaper labour but slower work. Both pairs point to a quality trade-off.

Interrelationship: must-know links

• Arithmetic links. The two parts sum to the total, so given any two figures you can find the third, then work back to actual kg, hours, price or rate.
• Cheap material: price F → usage A and efficiency A.
• Premium material: price A → usage F and efficiency F.
• Junior or agency staff on lower pay: rate F → efficiency A, often usage A.
• Skilled staff on higher pay: rate A → efficiency F, often usage F.
• Price rise: sales price F → sales volume A. Price cut: the reverse.
• Poor quality output: sales volume A through lost orders.

The point for evaluation: judge the net effect on profit of one decision, not each variance alone, and be careful about blaming the manager whose variance shows the damage.

Reconciliation layouts

Budget to actual cost

Budgeted cost (budgeted output × standard cost per unit)
± volume adjustment (difference in output × standard cost per unit)
= Standard cost of actual output
+ adverse cost variances
− favourable cost variances
= Actual cost

Budget to actual profit

Budgeted profit
+ favourable variances (sales, materials, labour)
− adverse variances
= Actual profit (check it against revenue − all actual costs)

Must-know distinction: in a cost reconciliation adverse variances are added; in a profit reconciliation adverse variances are subtracted. Any difference between budgeted and actual fixed overheads goes in as one separate line.

Quick self-test

1. Define a standard cost.
2. Standard: 3 kg at 2.40 per kg. Output 400 units. Actual: 1,230 kg costing 2,829. Calculate the materials price and usage variances.
3. Standard: 1.5 hours at 12.00 per hour. Output 300 units. Actual: 440 hours costing 5,544. Calculate the labour rate and efficiency variances.
4. Budget 2,000 units; standard contribution 7 per unit. Actual sales 2,150 units at 0.50 below standard price. Calculate both sales variances.
5. Total materials variance 340 A; usage variance 520 A. Find the price variance.
6. Why is standard quantity based on actual output, not budgeted output?
7. Which manager is usually answerable for the labour rate variance?
8. In a profit reconciliation, what happens to an adverse variance?
9. A firm has materials price F and labour efficiency A. Suggest one cause linking them.
10. Give one reason a favourable variance may not be good news.
11. Why is the sales volume variance valued at standard contribution rather than selling price?
12. State one type of business for which standard costing is poorly suited, and why.

Answers

1. A target cost per unit, fixed before the period from the quantities and prices a business expects when it works efficiently.
2. AP = 2,829 ÷ 1,230 = 2.30. Price = (2.40 − 2.30) × 1,230 = 123 F. SQ = 1,200 kg. Usage = (1,200 − 1,230) × 2.40 = 72 A.
3. AR = 5,544 ÷ 440 = 12.60. Rate = (12.00 − 12.60) × 440 = 264 A. SH = 450. Efficiency = (450 − 440) × 12.00 = 120 F.
4. Price = −0.50 × 2,150 = 1,075 A. Volume = (2,150 − 2,000) × 7 = 1,050 F.
5. Price = total − usage = −340 − (−520) = 180 F.
6. So the comparison is like-for-like; using budgeted output would mix a volume difference into the usage or efficiency result.
7. The person or department that agrees pay rates, such as personnel.
8. It is subtracted from budgeted profit.
9. Cheaper, lower-grade material was bought; it is harder to work, so labour took longer.
10. It may have caused adverse variances elsewhere, or come from cutting quality, so profit overall may fall.
11. Each extra unit sold also brings standard variable cost; only the contribution changes profit.
12. A business doing one-off or bespoke work, because there is no repeated unit to set a standard for.

Where marks are usually lost

• Flexing with budgeted output rather than actual output.
• Mixing actual and standard prices in the same variance.
• Leaving off F or A, or writing a negative number with no label.
• Giving a cause without linking it to the figures or to a responsible manager.
• Valuing sales volume at selling price.
• Adding adverse variances in a profit reconciliation.
• Starting a cost reconciliation from the original budget without the volume adjustment.
• Not checking that the reconciliation ends on the independently calculated actual profit.
• In evaluation, judging each variance alone and missing the overall effect on profit.

Official syllabus

OxfordAQA International AS and A-level Accounting (9615) specification, Version 1.2, for International AS exams May/June 2025 onwards and International A-level exams May/June 2026 onwards, published by OxfordAQA. Section 3.2.1, Standard costing and variance analysis.