What is X% of Y?
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How to Use This Percentage Calculator
Find Percentage
Calculate what X% of Y is. Example: What is 15% of 200?
Find Number
Calculate what percentage X is of Y. Example: 25 is what % of 200?
Increase/Decrease
Calculate a number increased or decreased by X%. Example: 200 increased by 10%.
Frequently Asked Questions
How do I calculate a percentage?
To calculate a percentage, divide the part by the whole and multiply by 100. For example, to find what percentage 25 is of 200: (25 ÷ 200) × 100 = 12.5%.
How do I calculate a percentage increase?
Subtract the original number from the new number, divide by the original number, and multiply by 100. For example, if a price increases from $50 to $60: (($60 - $50) ÷ $50) × 100 = 20% increase.
How do I calculate a percentage discount?
Multiply the original price by the percentage discount (in decimal form). For example, a $100 item with 25% discount: $100 × 0.25 = $25 discount, final price $75.