Percentage Calculator

Calculate a percentage of any number, find percentage change between two values, or work out a tip or discount in one click. The five most common percent problems are each a labeled mode — pick the question, type the numbers, get the answer.

How to use this percentage calculator

1. Pick the question. What is X% of Y? · X is what percent of Y? · % change from X to Y · X plus Y% · X minus Y%.
2. Enter the two numbers. Labels change with the mode so you always know which input is which.
3. Read the answer. Big result on the right with the operation spelled out underneath.

Common examples

• Tip: 18% of a $64 bill = $11.52.
• Discount: 25% off $89.99 = $67.49.
• Year-over-year change: 105 → 127 = +20.95%.
• Grade: 47 out of 200 = 23.5%.
• Tax: $80 plus 8.875% tax = $87.10.

Frequently asked questions

How do I calculate a percentage of a number?

Multiply the number by the percent and divide by 100. 18% of $64 is (64 × 18) ÷ 100 = $11.52.

How do I calculate percentage change?

Subtract the old value from the new, divide by the old, multiply by 100. From 105 to 127 = +20.95%.

What's the difference between percent and percentage point?

A percent is a ratio. A percentage point is a difference between two percents. Going from 5% to 8% is a 3 percentage-point increase, but a 60% relative increase.