Mathematics is the queen of the sciences.C. F. Gauss

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Percentage change

Compare an old and a new value.

6

Enter known values

Fill in the fields below — the result will appear alongside.

Formulas

Δ=new−old\Delta=new-old%Δ=Δ∣old∣×100\%\Delta=\frac{\Delta}{|old|}\times100

How it works

See the absolute difference, relative percentage change and direction of change. A change from zero is reported as mathematically undefined.

The difference is divided by the absolute old value and multiplied by 100.

Examples

From 80 to 100{"newValue":100,"oldValue":80}

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Percentage of a number

Find any percentage of a number.

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