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Performance Management · Planning and operational variances

Planning and Operational Variances Basics for ACCA Performance Management

Updated 11 October 2026 · Fact-checked

Planning and operational variances split a traditional variance into two parts. The planning variance measures the effect of a faulty or outdated original standard, compared with a revised ex-post standard. The operational variance measures actual performance against that revised standard. Planning is usually uncontrollable; operational is controllable by managers.

Understand Planning and Operational Variances Basics

A normal variance compares actual results with the original standard. The problem is that the original standard may have been wrong by the time the work was done. A supplier raises prices. A new method makes the job faster. Blaming the manager for the whole variance is unfair.

So we split the variance. The planning variance is the part caused by the standard being out of date or badly set. The operational variance is the part caused by how well the work was actually done against a fair target.

The fair target is the ex-post standard. Ex-post means "after the event". It is the standard you would have set if you had known the true conditions in advance. It is also called the revised standard.

Planning variances are generally treated as uncontrollable by the operating manager, because they come from the planning process or from external events. Operational variances are controllable, so managers are held accountable for them. This gives a fairer view of performance.

The two parts always add up to the traditional variance. If they do not, you have made an error.

Key rules to remember

Total variance
Traditional variance = Planning variance + Operational variance
Use this as a check on every answer.
Planning variance (price)
(Original standard price − Revised standard price) × Actual quantity
Favourable if the revised cost is lower than the original. Adverse if it is higher.
Operational variance (price)
(Revised standard price − Actual price) × Actual quantity
Favourable if actual cost is below the revised standard.
Planning variance (quantity or hours)
(Original standard quantity for actual output − Revised standard quantity for actual output) × Standard price
Use the price the question tells you to use. Keep the same price in both parts.
Operational variance (quantity or hours)
(Revised standard quantity for actual output − Actual quantity) × Standard price
Compares actual use with what should have been used under the ex-post standard.

How to solve Planning and Operational Variances Basics questions

Use this order for any planning and operational variance question.

  1. 1Identify the original standard and the ex-post (revised) standard from the question. Look for what changed: a market price, a method, a hours target.
  2. 2Work out the actual quantity or hours, and the actual price or rate.
  3. 3Calculate the traditional variance: original standard against actual. You need it as a check.
  4. 4Calculate the planning variance: original standard against revised standard, using actual quantity or the actual-output standard quantity.
  5. 5Calculate the operational variance: revised standard against actual, on the same basis.
  6. 6Label each variance Favourable (F) or Adverse (A). Lower cost than the comparison point is favourable.
  7. 7Check that planning plus operational equals the traditional variance.
  8. 8Add a short comment: who is responsible, and whether the cause is controllable.

Quickest way: The three-line ladder

When to use it: Use it when you are short of time and the question gives an original standard, a revised standard and actual figures.

  1. Write three lines: Original, Revised, Actual, each with its value for the same quantity.
  2. Planning variance is the gap between the Original and Revised lines.
  3. Operational variance is the gap between the Revised and Actual lines.
  4. Total is the gap between Original and Actual. Check that the two parts add up.
  5. Mark F where the cost falls as you move down the ladder, A where it rises.

Common mistakes in Planning and Operational Variances Basics

  • Calculating the planning variance on the budgeted quantity instead of the actual quantity.

    Students link the word planning with the budget.

    Fix: Use actual quantity purchased, or the standard quantity for actual output. The comparison must be on the same activity level.

  • Getting the sign wrong, for example calling a rise in market price favourable.

    Students subtract in the wrong order.

    Fix: Ask whether cost is lower or higher than the comparison point. Lower is favourable, higher is adverse.

  • Planning and operational variances do not add up to the traditional variance.

    Different quantities or prices are used in the two parts.

    Fix: Use the same quantity in both parts and make the revised standard the link between them.

  • Treating all planning variances as uncontrollable without comment.

    Students memorise the rule as always true.

    Fix: Say planning variances are generally uncontrollable by operating managers. Add that the planners may still be responsible if the standard was poorly set.

  • Using the actual figure as the revised standard.

    Students confuse the ex-post standard with what happened.

    Fix: The revised standard is what should have been achievable under the true conditions. Actual only appears in the operational variance.

  • Giving numbers with no explanation in a written question.

    Students run out of time or think calculation is enough.

    Fix: Add one sentence per variance on cause, control and who is accountable.

Worked examples

Example 1

A company set a standard material price of ₹40 per kg. During the period the market price for the material rose to ₹44 per kg. The company bought 12,000 kg at an actual price of ₹45 per kg. Calculate the traditional price variance, and the planning and operational price variances.

Show the solution
  1. Original standard price: ₹40. Revised (ex-post) standard price: ₹44. Actual price: ₹45. Actual quantity: 12,000 kg.
  2. Traditional price variance = (₹40 − ₹45) × 12,000 = ₹60,000 adverse.
  3. Planning variance = (₹40 − ₹44) × 12,000 = ₹48,000 adverse.
  4. Operational variance = (₹44 − ₹45) × 12,000 = ₹12,000 adverse.
  5. Check: ₹48,000 + ₹12,000 = ₹60,000. It agrees.

Answer: Planning price variance ₹48,000 adverse; operational price variance ₹12,000 adverse; total ₹60,000 adverse. Most of the variance is due to the market price rise, which the purchasing manager could not control. Only ₹12,000 reflects their performance against the market price.

Example 2

A product has an original standard of 5 labour hours per unit at ₹200 per hour. After the standard was set, a new production method was found that cuts the time to 4.5 hours per unit. In the period 1,000 units were made using 4,600 hours. Calculate the labour efficiency variance and split it into planning and operational parts. Use ₹200 per hour throughout.

Show the solution
  1. Original standard hours for actual output = 1,000 × 5 = 5,000 hours.
  2. Revised standard hours for actual output = 1,000 × 4.5 = 4,500 hours. Actual hours = 4,600.
  3. Traditional efficiency variance = (5,000 − 4,600) × ₹200 = ₹80,000 favourable.
  4. Planning variance = (5,000 − 4,500) × ₹200 = ₹1,00,000 favourable.
  5. Operational variance = (4,500 − 4,600) × ₹200 = ₹20,000 adverse.
  6. Check: ₹1,00,000 F − ₹20,000 A = ₹80,000 F. It agrees.

Answer: Planning efficiency variance ₹1,00,000 favourable; operational efficiency variance ₹20,000 adverse; total ₹80,000 favourable. The traditional figure hides that workers used 100 more hours than the improved method allowed, so the operational variance should be investigated.

Exam tips

  • Always show the revised standard clearly as its own line. Markers give credit for it even if a later step is wrong.
  • Section C questions usually ask you to calculate and then comment. Spend time on the comment: say which part is controllable and who is accountable.
  • In objective test questions, read which variance is asked for. A common wrong option is the traditional variance, which you get by skipping the revised standard.
  • Do the add-up check every time. It takes a few seconds and catches sign and quantity errors.
  • Be ready to discuss limits: the ex-post standard is hard to set objectively, and managers may argue over what counts as uncontrollable.

Practice questions from Planning and operational variances

Planning and Operational Variances Basics: frequently asked questions

What is the difference between planning and operational variances?

A planning variance is the gap between the original standard and the revised ex-post standard. It reflects the quality of the plan or external changes. An operational variance is the gap between the revised standard and actual results. It reflects how well the work was done.

What is an ex-post standard in ACCA PM?

It is the standard you would have set if you had known the true conditions at the time. It is set with hindsight, after the event. It gives a fair benchmark for judging actual performance.

Why use planning and operational variances?

Traditional variances can blame managers for events outside their control. Splitting them separates the planning issues from the performance issues. This improves accountability and helps the business improve its standard-setting.

Are planning variances always uncontrollable?

Not always. They are generally uncontrollable by operating managers. They may still be controllable by those who set the standards, so poor planning can be a management failing.