Percentage Change Calculator
Find the percentage change between two numbers.
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Find the percentage change
Percentage change shows how much a number has gone up or down relative to where it started. Type the starting value and the new value to get the change as a signed percentage along with the raw difference. A positive result means growth and a negative one means a drop, which is handy for prices, scores, web traffic and similar comparisons.
Why the original value matters
The change is always measured against the starting number, so the same difference is a bigger percentage when the original value is small.
Frequently asked questions
What is the percentage change formula?
Subtract the original value from the new value, divide by the absolute original value, and multiply by 100. A positive answer is an increase, a negative one is a decrease.
What does a negative result mean?
It means the value dropped. For example, going from 200 to 150 is a change of minus 25 percent.