Percent Change Calculator
Calculate the percent change from one value to another.
Amortization schedule
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Showing first 12 of months.
Growth over time
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Introduction
Percent Change Calculator — Calculate the percent change from one value to another. Enter Original value, New value to get an instant, accurate result.
Formula
Percent change = ((new value − original value) / |original value|) × 100.
Step-by-step
- Enter the Original value.
- Enter the New value.
- Click Calculate to see your result instantly.
Real-world example
Example: With Original value = 100, New value = 150, the Percent Change Calculator gives Percent Change: 50.
Frequently Asked Questions
What if the original value is 0?
Percent change is undefined when the original value is 0, so no result is returned.
Can percent change be negative?
Yes — a negative result means the value decreased.
What inputs does the Percent Change Calculator need?
You'll need to provide: Original value, New value. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Percent Change Calculator?
The Percent Change Calculator applies the formula exactly as calculated — Percent change = ((new value − original value) / |original value|) × 100. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Percent Change Calculator free to use?
Yes, the Percent Change Calculator is completely free, requires no signup, and runs instantly in your browser.
About the Percent Change Calculator
The Percent Change Calculator uses a real, verifiable formula — Percent change = ((new value − original value) / |original value|) × 100. — so results are accurate every time, not an approximation.