Integrated Business Solutions (Multidisciplinary Case Study with Strategic Management) · Strategic Cost & Performance Management

Budgeting and Variance Analysis for CA Final (Paper 6 IBS)

Updated 5 October 2026 · Fact-checked

Budgeting and variance analysis compares planned figures with actual results and explains the gap. Set standards or a budget, flex it to actual activity, compute the difference for each cost or sales element, label it favourable or adverse, split it into price and quantity causes, and reconcile the parts to the total.

Understand Budgeting and Variance Analysis

A budget is a plan in money terms for a period. Standard costing sets a per-unit target for material, labour and overhead. Budgetary control compares actual results with the budget and acts on the gaps. The gap is a variance. A variance is favourable (F) if it raises profit and adverse (A) if it reduces profit.

A fixed budget is set for one activity level. If actual output differs, comparing actual cost with that budget is misleading. A flexible budget restates the budget for the actual activity: variable cost moves with activity, fixed cost stays the same within the relevant range. Always compare actual with the flexed budget, not the original one.

Traditional (incremental) budgeting takes last year's figures and adjusts them. Zero-based budgeting (ZBB) starts from zero. Each activity is justified as a decision package, ranked by benefit against cost, and funded in rank order until resources run out. ZBB removes inherited waste but needs more time and effort. Incremental budgeting is quick but carries old inefficiencies forward.

Variance analysis splits the total gap into causes. For a cost, the two basic causes are price (rate) and quantity (usage or efficiency). Material has an extra split of usage into mix and yield. Labour has an extra split into idle time and efficiency. Fixed overhead splits into expenditure and volume. Sales splits into price and volume, and volume splits into mix and quantity.

In Paper 6 the numbers sit inside a case. You must find the variances, say what likely caused them, and advise which are controllable and worth investigating. A correct number with no interpretation earns only part of the marks.

Key rules to remember

Material cost variance: MCV = (SQ × SP) − (AQ × AP); SQ is standard quantity for actual output. MCV = price variance + usage variance.
Material price and usage: MPV = AQ × (SP − AP); MUV = SP × (SQ − AQ); Positive is favourable, negative is adverse. Calculate price on quantity purchased if the question says price is isolated at purchase.
Material mix and yield: Mix = SP × (RSQ − AQ); Yield = SP × (SQ − RSQ); MUV = Mix + Yield; RSQ is total actual input quantity split in the standard mix ratio. Apply per material and add.
Labour variances: LCV = (SH × SR) − (AH paid × AR); LRV = AH paid × (SR − AR); Idle time = idle hours × SR (adverse); LEV = SR × (SH − AH worked); SH is standard hours for actual output. Labour rate variance uses hours paid. Efficiency uses hours worked.
Variable overhead variances: Expenditure = (AH × SR) − Actual VOH; Efficiency = SR × (SH − AH); SR is the standard variable overhead rate per hour.
Fixed overhead variances: Expenditure = Budgeted FO − Actual FO; Volume = Absorbed FO − Budgeted FO; Absorbed FO = Standard rate × Actual output (in the same unit); Volume splits into capacity, efficiency and, if given, calendar variances. Expenditure plus volume gives the total fixed overhead variance.
Sales price and volume (profit method): Price = AQ × (AP − SP); Volume = Standard profit per unit × (AQ − BQ); BQ is budgeted quantity. Price plus volume gives the sales profit variance.
Sales mix and quantity: Mix = Std profit per unit × (AQ − RAQ); Quantity = Std profit per unit × (RAQ − BQ); RAQ is total actual quantity split in the budgeted mix. Mix plus quantity equals volume.
Flexible budget: Flexed cost = Variable cost per unit × Actual activity + Fixed cost; Use for semi-variable costs after splitting them into fixed and variable parts.

How to solve Budgeting and Variance Analysis questions

Use the same sequence for every variance question. It stops sign errors and keeps the totals reconcilable.

1Read the case and note what the question asks: which variances, which method (profit or turnover for sales), and whether it wants causes or advice.
2Write the standard per unit and the actual data side by side in a small table. Identify the actual output and the budgeted output.
3Compute standard quantity or hours for the actual output (SQ or SH). Do this before any variance.
4Calculate the total variance first (standard cost for actual output minus actual cost).
5Compute the price/rate and quantity/efficiency variances, then the sub-variances such as mix and yield. Mark each F or A.
6Add the parts and check that they equal the total variance. If they do not, find the error before moving on.
7Write a short comment for each major variance: probable cause, whether it is controllable, and who is responsible.
8If the question asks for a budget, flex it to actual activity first. If it asks about ZBB, rank the packages and cut at the resource limit.

Quickest way: Standard-less-actual grid

When to use it: Use when a question gives several materials or products and you have limited time. It works for both material and sales mix and yield.

Build three columns: Standard (SQ × SP), Revised standard (RSQ × SP), and Actual quantity at standard price (AQ × SP), plus Actual cost (AQ × AP).
Differences between adjacent columns give the variances: standard to revised standard is yield, revised standard to actual quantity at standard price is mix, and that to actual cost is price.
Compute RSQ by multiplying total actual input by the standard ratio. Do not round until the final line.
Total the column differences and check them against the cost variance.
For sales, use the same grid with budgeted quantity, revised actual quantity, actual quantity at standard profit, and actual profit.

Common mistakes in Budgeting and Variance Analysis

Calculating usage or efficiency variance on budgeted output instead of actual output.
Students take the standard from the budget sheet without scaling it.
Fix: Always compute SQ or SH for the actual output first. Only fixed overhead volume uses a comparison with budget.
Using the wrong sign convention so favourable and adverse are swapped.
Students subtract in the wrong order for revenue and cost items.
Fix: For costs, standard minus actual is favourable when positive. For sales and profit, actual minus standard is favourable when positive. State F or A next to each answer.
Calculating mix variance using total standard quantity rather than revised standard quantity.
The terms SQ and RSQ are confused when the actual input differs from standard input.
Fix: RSQ equals total actual input times the standard ratio. Mix compares RSQ with AQ. Yield compares SQ with RSQ.
Using hours worked instead of hours paid for labour rate variance, or ignoring idle time.
Students treat all hours as productive.
Fix: Rate variance uses hours paid. Idle time is a separate adverse variance. Efficiency uses hours worked.
Adding a fixed overhead variance to flexible budget figures as if fixed cost changes with output.
Students flex every cost line automatically.
Fix: Flex only variable and the variable part of semi-variable costs. Keep fixed cost at budget within the relevant range.
Stopping at numbers with no interpretation in a case study.
Students treat the question as a calculation drill.
Fix: After each major variance, add one line on cause, controllability and action. Link adverse price to purchasing and adverse mix to production decisions.

Worked examples

Example 1

A company makes a product using materials A and B. Standard mix for a batch: A 60 kg at ₹40 per kg and B 40 kg at ₹60 per kg. A batch of 100 kg input gives 80 units of output. This month 1,600 units were produced. Actual consumption: A 1,300 kg at ₹42 per kg and B 800 kg at ₹58 per kg. Calculate the material cost, price, usage, mix and yield variances.

Show the solution

Batches for actual output = 1,600 ÷ 80 = 20. SQ: A = 20 × 60 = 1,200 kg; B = 20 × 40 = 800 kg.
Standard cost of actual output = 1,200 × ₹40 + 800 × ₹60 = ₹48,000 + ₹48,000 = ₹96,000.
Actual cost = 1,300 × ₹42 + 800 × ₹58 = ₹54,600 + ₹46,400 = ₹1,01,000.
MCV = ₹96,000 − ₹1,01,000 = ₹5,000 A.
Price: A = 1,300 × (40 − 42) = ₹2,600 A; B = 800 × (60 − 58) = ₹1,600 F. Total price variance = ₹1,000 A.
Actual quantity at standard price = 1,300 × 40 + 800 × 60 = ₹52,000 + ₹48,000 = ₹1,00,000. Usage variance = ₹96,000 − ₹1,00,000 = ₹4,000 A.
Total actual input = 2,100 kg. RSQ: A = 2,100 × 60% = 1,260 kg; B = 2,100 × 40% = 840 kg.
Mix: A = 40 × (1,260 − 1,300) = ₹1,600 A; B = 60 × (840 − 800) = ₹2,400 F. Total mix = ₹800 F.
Yield: A = 40 × (1,200 − 1,260) = ₹2,400 A; B = 60 × (800 − 840) = ₹2,400 A. Total yield = ₹4,800 A.
Check: mix ₹800 F + yield ₹4,800 A = ₹4,000 A (usage). Price ₹1,000 A + usage ₹4,000 A = ₹5,000 A (MCV).

Answer: MCV ₹5,000 A; price ₹1,000 A; usage ₹4,000 A; mix ₹800 F; yield ₹4,800 A. The main loss is yield: 2,100 kg of input was used where 2,000 kg should have produced 1,600 units, so process loss or wastage needs investigation.

Example 2

A firm sells products X and Y. Budget: X 1,000 units at ₹100 with standard cost ₹70; Y 500 units at ₹200 with standard cost ₹150. Actual: X 900 units at ₹105; Y 600 units at ₹190. Standard costs were met. Calculate sales price, volume, mix and quantity variances on the profit basis and the total sales profit variance.

Show the solution

Standard profit per unit: X = ₹100 − ₹70 = ₹30; Y = ₹200 − ₹150 = ₹50.
Budgeted profit = 1,000 × 30 + 500 × 50 = ₹30,000 + ₹25,000 = ₹55,000.
Actual profit = 900 × (105 − 70) + 600 × (190 − 150) = ₹31,500 + ₹24,000 = ₹55,500. Total sales profit variance = ₹500 F.
Price: X = 900 × (105 − 100) = ₹4,500 F; Y = 600 × (190 − 200) = ₹6,000 A. Total price = ₹1,500 A.
Volume: X = (900 − 1,000) × 30 = ₹3,000 A; Y = (600 − 500) × 50 = ₹5,000 F. Total volume = ₹2,000 F.
Budgeted total = 1,500 units; actual total = 1,500 units. Quantity variance = 0, since RAQ equals budgeted quantity for each product (X 1,000, Y 500).
Mix: X = 30 × (900 − 1,000) = ₹3,000 A; Y = 50 × (600 − 500) = ₹5,000 F. Total mix = ₹2,000 F.
Check: price ₹1,500 A + volume ₹2,000 F = ₹500 F.

Answer: Price ₹1,500 A; volume ₹2,000 F; mix ₹2,000 F; quantity nil; total sales profit variance ₹500 F. Total units were on budget, so the gain came wholly from shifting sales to the higher-margin product Y, while discounting Y cost ₹6,000.

Exam tips

In Paper 6, expect variances inside a business case. Compute only what is asked, then spend the saved time on interpretation and recommendations.
Always show the reconciliation of sub-variances to the total. Examiners give marks for the check even if one number is off.
If the question says nothing about method, state your assumption, such as profit method for sales variances, and apply it consistently.
For ZBB versus traditional budgeting, answer in a short contrast: starting point, justification, effort, risk, and suitability. Add a case-specific recommendation.
For MCQs, find the sign first (F or A), then the number. Wrong-sign options are common distractors, and there is no negative marking, so always attempt.

Practice questions from Strategic Cost & Performance Management

Budgeting and Variance Analysis in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Budgeting and Variance Analysis: frequently asked questions

What is the difference between zero-based budgeting and traditional budgeting?

Traditional budgeting starts from last year's figures and adds or trims an amount. Zero-based budgeting starts from nil and requires every activity to be justified and ranked. ZBB suits discretionary and support costs, but it takes more effort.

How do I calculate sales mix and yield variance?

Sales has mix and quantity variances, not yield. Mix = standard profit per unit × (actual quantity − revised actual quantity), where revised actual quantity is total actual sales in the budgeted ratio. Yield belongs to material and is compared with revised standard quantity.

What is the difference between a fixed and a flexible budget?

A fixed budget stays at one planned activity level. A flexible budget is restated for actual activity, with variable costs changed and fixed costs held constant. Control comparisons should use the flexible budget.

Which standard costing formulas should I memorise first?

Start with material price and usage, labour rate and efficiency, and fixed overhead expenditure and volume. The other variances come from these by splitting. Practise the reconciliation check each time.

How is this topic examined in Paper 6?

It appears within an integrated case where you may calculate variances, explain causes and suggest action. It can also be linked to pricing, performance measures or audit of cost records. MCQs test short calculations and signs.