How to use the percentage calculator
Three modes in one tool
What is X% of Y? — e.g. a 20% discount on a $150 item.
X is what % of Y? — e.g. 30 correct answers out of 150 questions.
Percentage increase / decrease — e.g. how much a price rose from $80 to $100.
Tips
Results update live as you type. Decimals are fine — try 12.5% of 240.
Example
20% of 150 = 30. If a store offers 20% off a $150 jacket, you save $30 and pay $120.
Frequently asked questions
What is 20% of 150?
20% of 150 equals 30. Multiply 150 by 0.20.
How do I find percentage increase?
Subtract the old value from the new value, divide by the old value, and multiply by 100. Our tool does this instantly.
Can I use decimals?
Yes — the calculator accepts decimal numbers in every field.
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