KPIOperations & Supply Chain

Purchase Price Variance (PPV)

Difference between the standard price and the actual price paid for goods or services

What is Purchase Price Variance (PPV)?

Purchase price variance is the difference between the actual price paid for goods and the standard, or expected, price, multiplied by the quantity bought. It shows whether purchasing is coming in above or below plan.

It is a key control in manufacturing and retail, helping to explain changes in cost and margin.

How this KPI is measured

Function
Operations & Supply Chain
Sub-function
Procurement
Industry
All Industries
Type
Lagging
Impact
Financial control
Unit
$
Measurement frequency
Monthly / Quarterly
Formula
(Actual price paid − Standard price) × Quantity purchased

How to calculate it

Subtract the standard price from the actual price paid and multiply by the quantity purchased.

For example, if a part has a standard price of 10, the actual price was 10.50 and 20,000 were bought, PPV is (10.50 - 10) x 20,000 = 10,000 unfavourable.

A positive result means paying more than standard, and a negative result means paying less. Review the standard prices regularly so the measure stays meaningful.

Where it is used

  • Controlling cost

    Spot price increases.

  • Explaining margin changes

    Link to purchasing.

  • Assessing suppliers

    Track price performance.

How to improve it

Tips and common mistakes

  • An outdated standard makes variances meaningless.
  • Favourable variances from poor quality can be costly later.
  • Consider total cost, not only price.

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