Percentage Increase Calculator
Calculate the percentage change between two values.
How to calculate percentage change
Subtract the original value from the new value, divide by the absolute original, multiply by 100. A negative result indicates a decrease.
change = ((to − from) / |from|) × 100
Example: from 100 to 150 → (150 − 100) / 100 × 100 = +50%.
FAQ
How do I calculate percentage increase?
Subtract the original value from the new value, divide by the original, and multiply by 100. (150 − 100) / 100 × 100 = 50%.
How do I calculate percentage decrease?
Use the same formula. If the result is negative, it's a decrease. (80 − 100) / 100 × 100 = −20% (a 20% decrease).