Percentage calculator: 3-in-1

Percent of a number, one number as a percent, and percentage change.

YOUR NUMBERSResults update as you type

What do you want to calculate?

20% of 15030

Method & assumptions

Percent-of: X × Y ÷ 100. Share: X ÷ Y × 100. Change: difference divided by the absolute starting value. Undefined divisions show a message.