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Finance Tool

📊 Percentage Calculator


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How to Use Percentage Calculator

  1. Mode 1 - X% of Y: Enter the percentage (X) and the number (Y) to find what X% of Y is.
  2. Mode 2 - X is what % of Y: Enter two numbers (X and Y) to find what percentage X is of Y.
  3. Mode 3 - Percentage Change: Enter the old value and new value to calculate the percentage increase or decrease.
  4. The result will appear instantly as you type.
  5. Positive percentage changes show in green, negative changes show in red.

💡 Pro Tip: Use Mode 1 for calculating discounts (e.g., 20% of $50), Mode 2 for finding percentages (e.g., what % is 25 of 200), and Mode 3 for tracking growth (e.g., stock price changes).

Why Use Percentage Calculator

  • ✅ 100% client-side processing - your data stays private
  • ✅ Three calculation modes for different percentage needs
  • ✅ Instant results as you type with no button clicks required
  • ✅ Color-coded results: green for increases, red for decreases
  • ✅ Completely free to use with no registration required
  • ✅ Perfect for students, business owners, investors, and everyday use
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