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Percentage Change Calculator

Calculate the percentage increase or decrease between two values. Perfect for financial analysis, stock market gains, and tracking growth or decline.

Calculate Percentage Change

Enter the starting value before the change
Enter the value after the change

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Change Results

Your Percentage Change Results Will Appear Here

Enter your values and click "Calculate Change" to see the results

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Why Use Our Percentage Change Calculator?

Our percentage change calculator helps you quickly determine the percentage increase or decrease between two values. This is particularly useful for financial analysis, tracking investment performance, measuring growth rates, and comparing data over time. Whether you're analyzing stock market returns, sales figures, or population growth, this tool provides instant, accurate results with a clear visual representation of the change.

How to Use

  • Enter the original value in the first input field
  • Enter the new value in the second input field
  • Click the Calculate Change button
  • View the percentage change result and detailed breakdown
  • The color coding (green for increase, red for decrease) makes results easy to interpret

Practical Applications

Financial Analysis

Investors and analysts use percentage change to track stock performance, portfolio growth, and economic indicators over time.

Business Metrics

Business owners calculate percentage changes in sales, revenue, expenses, and customer numbers to measure growth or identify trends.

Academic Use

Students and researchers calculate percentage changes in scientific experiments, demographic studies, and data analysis projects.

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Frequently Asked Questions

How do you calculate percentage change?
Percentage change is calculated using the formula: ((New Value - Original Value) / Original Value) × 100. If the result is positive, it's an increase; if negative, it's a decrease.
What's the difference between percentage change and percentage difference?
Percentage change measures the increase or decrease from an original value to a new value. Percentage difference compares two values without considering which one is the reference point.
Can percentage change be negative?
Yes, a negative percentage change indicates a decrease from the original value to the new value. For example, if a stock price drops from $100 to $80, the percentage change is -20%.
How is percentage change useful in real life?
Percentage change is widely used in finance (investment returns), economics (inflation rates), business (sales growth), and everyday situations (discount calculations) to measure and compare changes over time.