Percentage Change Calculator
Calculate the percentage increase or decrease between two numbers.
Percentage change
—
Difference
—
Results update as you type.
About this calculator
A percentage change calculator finds how much a value has gone up or down in percent terms, plus the raw difference. It’s used for price changes, growth rates, weight changes and any before-and-after comparison.
Frequently asked questions
How do I calculate percentage change?
Subtract the original from the new value, divide by the original, and multiply by 100. From 200 to 260 is (260−200)/200 × 100 = 30% increase.
What does a negative result mean?
A negative percentage change means the value decreased. From 260 to 200 is a −23% change.
Results are estimates for general guidance only, not financial, medical or tax advice.