Percentage change calculator

Here’s a simple, ad-free, online calculator for determining the percentage change of two numbers. Input the figure of the first period (“original value”) as well as the second period (“new value”) and the calculator will provide the percentage increase or decrease. Easy.







Result will appear here

Want to do this yourself in Excel or anywhere else? The formula is fairly simple:

[(New value - Original value)/Original value]

i.e. take the new value and subtract the original value -- then take that result and divide it by the original value.

The output will be the percentage change between the two values.