Shrinkage Rate Calculator: Calculate shrinkage rate calculator in Seconds

Calculate inventory shrinkage rate. Measure loss from theft, damage, etc. This tool helps you calculate, understand, and optimize this metric for your business.

By Veira Inventory Expert, Inventory Advisor at VeiraPublished June 2024Updated June 2024
Calculator
Result
Shrinkage KES 38,000 (1.58% of sales)
Stock the books say you holdKES 850,000
Stock you actually countedKES 812,000
Unexplained lossKES 38,000
As a share of sales1.58%
At this rate, over twelve monthsKES 456,000

The annual figure is the one worth sitting with: at this month's rate the shop loses about KES 456,000 a year to stock that left without being sold. Shrinkage is theft, damage, expiry, and mis-keyed sales in roughly that order of difficulty to fix, and you cannot tell which until counts are frequent enough to narrow the window.

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What shrinkage actually measures

Shrinkage is the gap between the stock your records say you hold and the stock a physical count finds. It is not one problem: it is theft, damage, expiry and mis-keyed sales bundled into a single number, in roughly that order of difficulty to fix.

Expressing it as a share of sales makes it comparable month to month and between branches. Expressing it annually makes it impossible to ignore, which is usually the point at which a shop does something about it.

Narrowing the cause

You cannot tell which cause is dominant from one count. Counting more often narrows the window in which the loss happened, which is the only reliable way to separate a slow leak from a single event.

A clean count is worth checking rather than celebrating. If the book figure is routinely adjusted to match the count rather than the reverse, the number is meaningless. The person counting and the person able to edit stock records should not be the same person.

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Worked examples

Books say KES 850,000, count finds KES 812,000, on KES 2.4M of sales
  • Unexplained loss KES 38,000
  • 1.58% of sales
  • About KES 456,000 a year at this rate

Frequently asked questions

What is inventory shrinkage?
The gap between the stock your records say you hold and the stock a physical count finds. It bundles theft, damage, expiry and mis-keyed sales into one number.
What is an acceptable shrinkage rate?
It varies too much by trade for a single figure to be useful, and published benchmarks rarely describe a Kenyan SME. Measure your own rate and watch its direction: a figure rising against its own trend tells you more than any external number.
How do I find the cause of shrinkage?
You cannot from one count. Counting more often narrows the window in which the loss happened, which is the only reliable way to separate a slow leak from a single event.
Why was my count clean?
Possibly nothing is wrong. It can also mean the book figure is being adjusted to match the count rather than the reverse, which makes the number meaningless. Check that the person counting and the person able to edit stock records are different people.

Doing this by hand every time? Veira runs the same calculation automatically on every sale, no spreadsheet required.

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