Management Accounting · Standard Costing and Variance Analysis (Management Accounting)

Variance Reconciliation and Investigation in Standard Costing

Updated 10 October 2026 · Fact-checked

Variance reconciliation starts with budgeted or standard profit. You add favourable variances and subtract adverse ones until you reach actual profit. Investigation then asks which variances are worth chasing. You judge size, controllability, trend and the cost of finding the cause, and you check how variances link to each other.

Understand Variance Reconciliation and Investigation

A standard costing system produces many variances. Each one explains a small gap between plan and actual. A reconciliation statement puts them together. It starts from the budgeted (standard) profit and shows, line by line, how you arrive at the actual profit. If your final figure does not match the actual profit given in the question, a variance is missing or has the wrong sign.

The rule is simple. A favourable variance raises profit and an adverse variance lowers it. Sales variances (price and volume) change profit from the budget. Cost variances (material, labour, overhead) change it further. Under marginal costing, use standard contribution per unit for the sales volume variance and show fixed overhead only as an expenditure variance. Under absorption costing, be careful not to double count the fixed overhead volume variance with the sales volume variance. Follow the method the question states.

Variances are interrelated. One cause can create a favourable variance in one place and an adverse one in another. Cheaper material may give a favourable price variance but cause more wastage, so the usage variance turns adverse. Hiring higher-paid skilled workers gives an adverse rate variance but may give a favourable efficiency variance. Idle time is adverse by itself and may also show up as lost output. So you should never judge one variance alone.

Investigation is a management decision. Not every variance deserves a study, because finding causes costs money. Managers look at the size of the variance (often as a percentage of standard), whether it repeats or trends in one direction, whether it is controllable, and whether the benefit of correcting it exceeds the cost of investigating. Some firms use control limits: a variance outside the set limit is investigated.

Controllability matters for accountability. A material price variance caused by a market-wide price rise is usually outside the purchase manager's control. A usage variance caused by poor machine handling is controllable by the production manager. ICMAI expects you to name the likely cause and the responsible person or department, not only the number.

Key rules to remember

Reconciliation of profit: Actual profit = Budgeted (standard) profit ± Sales variances ± Cost variances; Add favourable variances and subtract adverse ones. The result must equal the actual profit.
Material cost variance: MCV = (SQ × SP) − (AQ × AP) = MPV + MUV; SQ is standard quantity for actual output. Positive means favourable.
Material price and usage: MPV = AQ × (SP − AP); MUV = SP × (SQ − AQ); Price variance uses the quantity actually purchased or used, as the question states.
Labour cost variance: LCV = (SH × SR) − (Hours paid × AR) = Rate + Idle time + Efficiency; SH is standard hours for actual output. Use this form when idle time exists.
Labour rate, idle time and efficiency: LRV = Hours paid × (SR − AR); Idle time variance = Idle hours × SR (adverse); LEV = SR × (SH − Hours worked); Hours paid = hours worked + idle hours.
Fixed overhead variances: FOH cost variance = Absorbed FOH − Actual FOH = Expenditure variance + Volume variance; Volume variance = (Actual output − Budgeted output) × standard rate per unit.
Sales variances (margin method): Sales price variance = Actual qty × (Actual price − Standard price); Sales volume variance = (Actual qty − Budgeted qty) × Standard margin per unit; Standard margin is contribution under marginal costing and profit under absorption costing.
Investigation rule of thumb: Investigate when expected benefit of correction > cost of investigation; Also consider size, trend and controllability. This is a guide, not a fixed law.

How to solve Variance Reconciliation and Investigation questions

Use this order for any reconciliation or investigation question. It keeps signs right and shows the examiner each step.

1Read the costing basis (marginal or absorption) and note the starting profit: budgeted or standard profit.
2Compute every variance asked or implied. Mark each one F (favourable) or A (adverse) straight away.
3Check the internal totals: MPV + MUV = MCV, and rate + idle time + efficiency = LCV.
4Start the statement with budgeted profit. List sales variances first, then material, labour, variable overhead and fixed overhead variances.
5Add the favourable items and subtract the adverse ones. Show the actual profit and tick it against the figure given.
6If it does not match, recheck signs and any variance you left out, such as idle time or fixed overhead expenditure.
7For investigation parts, state each significant variance, its likely cause, who controls it, and the link to other variances.
8Close with a short recommendation: which variances to investigate first and why.

Quickest way: Net variance shortcut

When to use it: Use when the question gives all variances and asks only for actual profit, or when you need to check your answer fast.

Add all favourable variances into one total and all adverse variances into another.
Net them: favourable total minus adverse total.
Add the net figure to budgeted profit. If it is negative, profit falls.
Cross-check with a direct comparison of actual revenue less actual cost, if the data allows.
Write the full statement only if marks are given for presentation.

Common mistakes in Variance Reconciliation and Investigation

Adding adverse variances to profit
Students see a positive number and forget the sign logic.
Fix: Write F or A beside every variance first. Favourable adds, adverse subtracts. No exceptions.
Double counting fixed overhead volume variance under absorption costing
The sales volume variance at standard profit already includes the fixed overhead recovery effect.
Fix: Follow the basis in the question. Under marginal costing, use contribution for sales volume and show only fixed overhead expenditure.
Leaving out idle time variance
Students compute efficiency only on hours worked and forget hours paid.
Fix: Compute rate variance on hours paid and idle time on idle hours at standard rate. Check that the three parts add up to the labour cost variance.
Treating each variance as independent in comments
Students memorise formulas but not the story behind them.
Fix: Always ask what a favourable price variance might have caused elsewhere, such as poor quality leading to adverse usage.
Recommending investigation of every adverse variance
Students assume adverse always means a problem.
Fix: Apply materiality, trend, controllability and cost-benefit. A small one-off variance may not be worth studying.
Using budgeted quantity instead of actual sales quantity for the price variance
Students mix up the price and volume variance bases.
Fix: Price variance uses actual quantity. Volume variance uses the difference between actual and budgeted quantity.

Worked examples

Example 1

Using marginal costing, a firm budgeted sales of 4,000 units at a standard contribution of ₹80 per unit, with budgeted fixed cost of ₹1,60,000. Actual sales were 3,800 units at ₹5 above the standard selling price. Variances: material price ₹8,000 A; material usage ₹3,000 F; labour rate ₹5,000 A; labour efficiency ₹2,000 A; idle time ₹1,500 A; variable overhead expenditure ₹2,500 F; fixed overhead expenditure ₹4,000 A. Prepare a statement reconciling budgeted and actual profit.

Show the solution

Budgeted profit = 4,000 × ₹80 − ₹1,60,000 = ₹3,20,000 − ₹1,60,000 = ₹1,60,000.
Sales volume variance = (3,800 − 4,000) × ₹80 = ₹16,000 A.
Sales price variance = 3,800 × ₹5 = ₹19,000 F.
Start at ₹1,60,000. Less sales volume ₹16,000 gives ₹1,44,000. Add sales price ₹19,000 gives ₹1,63,000.
Less material price ₹8,000 gives ₹1,55,000. Add material usage ₹3,000 gives ₹1,58,000.
Less labour rate ₹5,000 gives ₹1,53,000. Less labour efficiency ₹2,000 gives ₹1,51,000. Less idle time ₹1,500 gives ₹1,49,500.
Add variable overhead expenditure ₹2,500 gives ₹1,52,000. Less fixed overhead expenditure ₹4,000 gives ₹1,48,000.
Check: favourable total = 19,000 + 3,000 + 2,500 = ₹24,500. Adverse total = 16,000 + 8,000 + 5,000 + 2,000 + 1,500 + 4,000 = ₹36,500. Net = ₹12,000 A. ₹1,60,000 − ₹12,000 = ₹1,48,000.

Answer: Actual profit is ₹1,48,000, which is ₹12,000 lower than budgeted profit of ₹1,60,000. The price gain on sales and the saving in material usage did not fully cover the volume shortfall and the adverse labour and fixed overhead variances.

Example 2

For actual output, standard material is 500 kg at ₹40 per kg. Actual purchase and use: 520 kg at ₹38 per kg. Standard labour for the same output is 1,000 hours at ₹25 per hour. Actual hours paid were 1,000 at ₹26 per hour, of which 40 hours were idle. Compute the material and labour variances, verify the totals, and comment on the interrelationship.

Show the solution

Standard material cost = 500 × ₹40 = ₹20,000. Actual = 520 × ₹38 = ₹19,760.
MCV = ₹20,000 − ₹19,760 = ₹240 F.
MPV = 520 × (40 − 38) = ₹1,040 F.
MUV = 40 × (500 − 520) = ₹800 A.
Check: 1,040 − 800 = ₹240 F, which matches MCV.
Standard labour cost = 1,000 × ₹25 = ₹25,000. Actual = 1,000 × ₹26 = ₹26,000. LCV = ₹1,000 A.
Hours worked = 1,000 − 40 = 960. LRV = 1,000 × (25 − 26) = ₹1,000 A.
Idle time variance = 40 × ₹25 = ₹1,000 A.
LEV = 25 × (1,000 − 960) = ₹1,000 F.
Check: −1,000 − 1,000 + 1,000 = ₹1,000 A, which matches LCV.

Answer: MCV ₹240 F (price ₹1,040 F, usage ₹800 A). LCV ₹1,000 A (rate ₹1,000 A, idle time ₹1,000 A, efficiency ₹1,000 F). Comment: the cheaper material saved ₹1,040 on price but the extra 20 kg cost ₹800, so quality or wastage should be checked. The favourable efficiency is offset by idle time and a higher wage rate. Idle time of 40 hours and the rate variance are the first items to investigate.

Exam tips

Always end a reconciliation with a tick against the given actual profit. A mismatch tells you where to look for the error.
Write F or A beside every variance. Examiners give step marks for correct signs even when one figure is wrong.
In comment parts, give three things: likely cause, responsible person or department, and link to another variance.
For investigation questions, mention materiality, trend, controllability and cost-benefit. A one-line answer loses marks.
In MCQs, a question often hides the answer in the sign. Check whether the result raises or lowers profit before choosing an option.

Practice questions from Standard Costing and Variance Analysis (Management Accounting)

Variance Reconciliation and Investigation in other exams

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

Variance Reconciliation and Investigation: frequently asked questions

How do I reconcile standard profit and actual profit?

Start with standard or budgeted profit. Add each favourable variance and subtract each adverse one, including sales, material, labour and overhead variances. The closing figure must equal actual profit.

Which variances should be investigated?

Investigate those that are large relative to standard, repeat over several periods, are controllable, and are likely to cost less to fix than they save. Small, random or uncontrollable variances are usually left alone.

How are material and labour variances interrelated?

One decision can affect several variances. Cheaper material may give a favourable price variance but cause adverse usage and labour efficiency. Better paid workers may give an adverse rate variance but a favourable efficiency variance.

Do I include the fixed overhead volume variance in the reconciliation?

It depends on the costing basis. Under marginal costing, show only fixed overhead expenditure. Under absorption costing, take care that the sales volume variance at standard profit does not cause double counting, and follow the method in the question.