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Percentage Change Calculator
Calculate the percent increase or decrease between two values.
Calculate percentage change
Enter original and new values to find the percent change.
How it works
The formula is: ((new - old) / old) × 100. A positive result is a percent increase. A negative result is a decrease.
When to use this
Calculate stock or crypto returns, compare prices over time, measure growth (revenue, savings), or see how much a currency moved. Useful for investors, travelers, and anyone tracking change between two values.