Percent Difference Calculator
Compare the same two values in both directions
Percent comparisons depend on which value you treat as the original point. Enter two numbers below to see how much Value 1 differs from Value 2, and how much Value 2 differs from Value 1. If you want a deeper walkthrough of this idea, check out this open source middle school math textbook: Grade 7 Math (Easy Access Materials) .
Please enter valid numbers in both boxes.
If Value 1 is the New Value
Using Value 2 as the original value.
If Value 2 is the New Value
Using Value 1 as the original value.
Note: Percent change divides by the original value, so a original value of 0 does not produce a defined percent comparison.