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Percentage Calculator

Calculate percentages, increases, decreases, differences and more — 6 modes, instant results.

✓ Free✓ No Login✓ 6 Calculation Modes✓ History✓ Instant

📐 Quick Formulas

% of number(% ÷ 100) × number
X is % of Y(X ÷ Y) × 100
% increase((New−Old) ÷ Old) × 100
% decrease((Old−New) ÷ Old) × 100
Add X%number × (1 + X/100)
Remove X%number × (1 − X/100)

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PursTech Pro

Unlimited usage, zero ads, API access

📖 How to Use the Percentage Calculator

1

Choose a Calculation Mode

Pick from 6 modes: find a percentage of a number, what percentage X is of Y, percentage change, difference, or add/subtract a percentage.

2

Enter Your Numbers

Type in the two values for your chosen mode. Press Enter or click Calculate for the result.

3

See the Result

Your answer appears instantly, colour-coded for increases (green) and decreases (red). Your last 10 calculations are saved in history.

❓ Frequently Asked Questions