Percentage Calculator

Calculate percentages quickly: find percentage of a number, what percent one number is of another, and percentage change.

40
Result
20
%
50
% change

📝 Quick Tips

  • Percentage of a number: Multiply the number by the percentage and divide by 100.
  • What percent of Y is X: (X / Y) × 100%
  • Percentage change: ((new - old) / |old|) × 100%
Results update automatically as you type.

✨ Why Use Our Percentage Calculator?

  • Three calculators in one – Find percentage of a number, what percent one number is of another, and percentage change.
  • Real-time results – See answers instantly as you type, no need to click buttons.
  • Simple and intuitive – Clean interface with clear labels for each calculation.
  • Handy for everyday use – Perfect for discounts, tips, grades, and business math.
  • 100% free & no signup – No limits, no registration required.

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