Percent Of Calculator – What is X% of Y?
Use our fast and free calculator to find what a specific percentage is of any number. This is useful for calculating sales tax, finding a discount amount, or solving general percentage problems.
Find the Percent of a Number
Enter your values (e.g., "What is 20% of 250?").
Result will appear here.
How to Calculate Percent Of a Number
The formula for finding what a percent is of a number is simple: multiply the base number by the percent value, and then divide by 100.
Formula: Percent × Base ÷ 100
Example: To find **15% of 300**: 15 × 300 ÷ 100 = 45
This calculation is fundamental for determining partial amounts, like the dollar amount of a sales tax on a purchase.