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Percentage of a Percentage

Calculate one percentage of another. Example: 20% of 50% = 10%. Shows the result as a percentage and a decimal.

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How it works

Taking a percentage of a percentage multiplies the two rates. For example, 20% of 50% is 0.20 × 0.50 = 0.10, or 10%. Useful for successive rates, partial discounts, and probability-style questions.

Frequently asked questions

What is 20% of 50%?

20% of 50% is 10%. Multiply 0.20 × 0.50 = 0.10, then convert to 10%.

Is this the same as successive discounts?

Not exactly. Successive discounts apply each rate to a remaining amount. “X% of Y%” only multiplies the two percentages. Use the Successive Discounts calculator for stacked sale prices.

Why is my answer a decimal?

Percentage math often yields non-whole numbers. Round to the precision you need for your context (money usually uses 2 decimals; grades may use 1 or 2).

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