Percentage calculator
Type your numbers and get the answer immediately; no button to press.
What is % of ?
Answer
30
is what % of ?
Answer
25%
Percent change from to
Increase
30%
Price after % off
Sale price
200 (you save 50)
About this tool
X% of Y equals Y × X ÷ 100. Percent change equals (new − old) ÷ old × 100. A discounted price equals the original × (1 − discount ÷ 100).
Example: 15% of 200 is 30; going from 100 to 130 is a 30% increase; a 250 item at 20% off costs 200.
FAQ
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100.
How do I calculate percent increase?
Subtract the old value from the new one, divide by the old value, and multiply by 100.