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Percent Change Calculator

Calculate percentage change, percentage increase, and percentage decrease with our free percent change calculator. This percent change calculator helps you compute percentage differences for prices, salaries, stock values, and more. Use our percent change calculator to understand how values change over time.

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Quick Examples

Percentage Increase
0.00%

Change Details

Original Value:100
New Value:130
Absolute Change:+0
Percent Change:+0.00%

Formula

Percent Change = ((New - Original) / |Original|) × 100
= ((130 - 100) / |100|) × 100
= 0.00%

What is a Percent Change Calculator?

A percent change calculator is a tool that helps you calculate the percentage increase or percentage decrease between two values. This percent change calculator computes how much a value has changed relative to its original amount, expressed as a percentage.

The percent change calculator uses the formula: ((New Value - Original Value) / |Original Value|) × 100. Whether you need to calculate stock price changes, salary increases, or sales discounts, our percent change calculator makes these calculations simple and accurate.

Percent Change vs Percentage Difference

Percent Change measures the change from an original value to a new value. It shows increase or decrease relative to the starting point. Example: A stock price goes from $50 to $60 is a 20% increase.

Percentage Difference compares two values without a specific starting point. It uses the average of both values as the reference. Example: The percentage difference between 50 and 60 is 18.18% (using their average of 55 as the base).

Real-World Uses of Percent Change Calculator

  • Stock Market: Calculate stock price increases or decreases over time
  • Salary Negotiations: Determine percentage increase in job offers
  • Retail Discounts: Calculate actual savings from percentage discounts
  • Business Growth: Measure revenue or profit growth rates
  • Health & Fitness: Track weight loss or gain percentages

Common Percent Change Examples

Stock Price Increase
$50 → $65 = 30% increase
Salary Raise
$60,000 → $66,000 = 10% increase
20% Off Sale
$100 → $80 = 20% decrease
Revenue Growth
$1M → $1.5M = 50% increase

Percent Change Quick Reference

2x
100% increase
3x
200% increase
½
50% decrease
¼
75% decrease

Disclaimer: This calculator is for educational and illustrative purposes only. Results are estimates and may not reflect actual outcomes. Investing Point does not guarantee the accuracy of these calculations and is not responsible for any decisions made based on this tool.

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