Online Percentage Calculator

Need to calculate discounts, increases, or ratios? Our online percentage calculator does it instantly. Perfect for students, professionals, and anyone who needs quick, accurate results.

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What is a percentage?

A percentage represents a fraction with a denominator of 100. Saying 20% means 20 out of every 100. It’s used in finance, statistics, shopping, and everyday life to make numbers easier to understand.

👉 Example: 20% of 150 equals 30.

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How to use the percentage calculator

1. Select the type of calculation you want (discount, increase, X% of Y, or what percentage one number is of another).
2. Enter the required values.
3. Click Calculate to get your result.

✅ The result appears automatically with the full formula explained.

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Practical examples

• Shopping: find discounts during sales.
• Finance: calculate returns, interest rates, and margins.
• Education: solve math problems involving percentages.
• Health: track progress or body fat percentage.
• Business: measure profits and growth.

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Frequently Asked Questions (FAQ)

How do I calculate a discount quickly?

Multiply the total value by the discount percentage and subtract that from the total.

Can I calculate increases?

Yes. Multiply the value by the percentage and add it to the total.

What does a percentage above 100% mean?

It means the value has more than doubled.

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Tips and curiosities

• The term comes from Latin per centum, meaning “by the hundred.”
• Percentages are used in statistics, sports, and business analysis.
• Mastering percentages helps in better financial and analytical decisions.

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➡️ Calculate your percentage now with the tool above!