Percent Change Calculator
Calculate the percentage change between two values, including gains and losses
Values
Result
Percent Change
+20.00%
Increase
Absolute Change
+20.00
How It Works
Formula: ((End Value - Start Value) / Start Value) × 100. Result can be positive or negative.
Quick Facts
Shows both direction (up/down) and magnitude of change, unlike other percentage calculators.
Example
Stock $100 to $120 = +20%. Stock $100 to $80 = -20%. Works for any metric.
Understanding Percent Change
Percent change shows the magnitude and direction of change from a starting value to an ending value.
- Positive percentages = increase/gain
- Negative percentages = decrease/loss
- Works for any measurable metric
- More versatile than increase/decrease calculators
Last updated: February 2026
Percent Change FAQ
What's the difference between increase and percent change?
Increase only shows positive changes. Percent change works for both increases and decreases, showing direction.
Can I use this for stock prices?
Yes! This is perfect for calculating stock price changes, cryptocurrency moves, and other financial metrics.
Does order matter?
Yes! Start value first, end value second. Reversing them will flip the sign of the result.
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