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How to Calculate Percentage Change
Formula
Percentage change measures how much a value has increased or decreased relative to its original amount. The formula is ((New - Old) / |Old|) x 100.
This calculator handles both increases and decreases, returning a positive value for growth and negative for decline.
Common use cases:
- Tracking stock price movements
- Comparing sales figures across periods
- Measuring population growth or decline
Frequently Asked Questions
Sarah Chen
Financial Analyst, CFA
Sarah is a Chartered Financial Analyst with over 8 years of experience in investment management and financial modeling. She specializes in retirement planning and compound interest calculations.
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