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Tools

Percentage Calculator

Percentages, ratios and percentage change, all in one place.

Why we built this

A discount, a price rise, a profit rate, a share of tax. Percentages are everywhere in business. From retail to trade, our clients run dozens of percentage calculations every day.

A small percentage error can turn into a large difference on a whole invoice. A quick, accurate calculation is often exactly what is needed most.

We built this tool so you can work out the percentage of a number, a ratio, or the percentage change between two values with ease. Free and practical.