Quick Work StudioCalculators
Find % increase or decrease between two values.
The Percentage Change is a free online tool in Quick Work Studio's calculators collection. Find % increase or decrease between two values. The difference between the new and original value is divided by the original value, then expressed as a percentage. A positive result is an increase, negative is a decrease.
This kind of calculation is common enough that most people do it in their head or on a napkin at some point — which is exactly where small arithmetic mistakes creep in. Using a dedicated calculator removes that risk and gives you the number instantly.
Like every tool on Quick Work Studio, the Percentage Change is 100% free, requires no sign-up, and works instantly in any modern browser on desktop or mobile — it's one of 100+ tools built to save you a small chunk of time without getting in your way.
No. Percentage Change runs entirely in your browser using JavaScript — whatever you type or upload is processed on your own device and is never sent to a server.
A negative result means the value decreased — for example, going from 100 to 80 is a -20% change.
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