Percentage Change Calculator
The Percentage Change Calculator allows you to quickly calculate the percentage increase or decrease between two values. Whether you’re comparing prices, sales, investments, test scores, or business performance, this free calculator provides fast and accurate results.
Calculate Percentage Change
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Percentage Change Formula
The percentage change formula helps you calculate the percentage increase or decrease between two values. It compares the difference between the original value and the new value relative to the original value and expresses the result as a percentage. A positive result indicates an increase, while a negative result indicates a decrease.
Percentage Change (%) = ((New Value − Original Value) ÷ Original Value) × 100
Where :
✅ New Value – The final or current value.
✅ Original Value – The starting or initial value.
✅ Percentage Change – The percentage by which the value has increased or decreased compared to the original value.
Note: A positive result indicates a percentage increase, while a negative result indicates a percentage decrease.
How to Calculate Percentage Change
Follow these four simple steps to calculate the percentage change between two values. The result can be either a percentage increase or a percentage decrease depending on whether the new value is higher or lower than the original value.
①
Find the Difference
Subtract the original value from the new value to find the difference.
②
Divide by Original Value
Divide the difference by the original value.
③
Multiply by 100
Multiply the result by 100 to convert it into a percentage
④
Read the Result
A positive result indicates a percentage increase, while a negative result indicates a percentage decrease.
Where Is Percentage Change Used?
Percentage change calculations are used in everyday life, business, finance, education, marketing, and data analysis to measure both increases and decreases over time.
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Business Performance
Measure changes in sales, revenue, profits, customer demand, inventory levels, and overall business performance.
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Salary & Income
Compare salary increases, bonuses, commissions, annual income, and changes in employee compensation over time.
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Finance & Investing
Analyze gains and losses in stock prices, investments, savings, portfolios, and overall financial performance.
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Education
Measure changes in test scores, grades, attendance, student performance, and academic progress over time.
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Shopping & Prices
Compare changes in product prices, discounts, service costs, household expenses, and retail pricing trends.
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Website & Marketing
Track changes in website traffic, conversions, click-through rates (CTR), advertising performance, and user engagement..
Related Percentage Calculators
Explore more free percentage calculators to solve a wide range of percentage problems, including increases, decreases, differences, discounts, taxes, and more.
Frequently Asked Questions
Find answers to the most common questions about calculating percentage change, understanding the formula, and comparing increases and decreases between two values.
To calculate percentage change, subtract the original value from the new value, divide the result by the original value, and multiply by 100.
Formula:
Percentage Change = ((New Value − Original Value) ÷ Original Value) × 100
The percentage change formula is:
Percentage Change = ((New Value − Original Value) ÷ Original Value) × 100
A positive result represents a percentage increase, while a negative result represents a percentage decrease.
Yes. A negative percentage change means the new value is lower than the original value, indicating a percentage decrease. A positive percentage change indicates a percentage increase.
Percentage change measures how much a value increases or decreases relative to its original value. Percentage difference compares two values without treating either one as the original value.
Percentage change is widely used in finance, business, education, marketing, healthcare, economics, science, and statistics to measure increases and decreases over time.
Yes. The Percentage Change Calculator supports both whole numbers and decimal values, making it useful for financial calculations, scientific data, measurements, and everyday use.
No. Percentage increase measures only increases in value, while percentage change measures both increases and decreases. Percentage change provides a complete view of how a value has changed over time.
Yes. Our Percentage Change Calculator is completely free to use. Simply enter the original value and the new value to instantly calculate the percentage change, whether it is an increase or a decrease.