🔢 Percentage Calculator — X% of Y, % Change, Discount & Tip (Free)

Five percentage modes in one fast tool — instant answers as you type. Free, no signup.

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FAQ

How do I calculate X% of a number?

Multiply the number by the percentage and divide by 100. Example: 20% of 150 = (20 ÷ 100) × 150 = 30.

How is percentage increase calculated?

Percentage change = ((New − Old) ÷ |Old|) × 100. Going from 80 to 100 is a 25% increase.

What is the difference between percent and percentage points?

Moving from 10% to 15% is a 5 percentage-point increase, but a 50% relative increase.

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