A free and easy tool for all your percentage calculation needs. Whether you're calculating a discount, a tip, or a statistical change, we've got you covered.
Example: What is 15% of 200?
Example: 50 is what percent of 200?
Example: From 150 to 200
Example: 25 is 10% of what number?
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%". Percentages provide a simple way to standardize different quantities for the purpose of comparison.
This is the most common percentage problem. The formula is to convert the percentage to a decimal and multiply it by the total value.
Formula: Result = (X / 100) * Y
Example: What is 15% of 200?(15 / 100) * 200 = 0.15 * 200 = 30
To find what percentage one number is of another, you divide the part by the whole and then multiply by 100.
Formula: Result = (X / Y) * 100
Example: 50 is what percent of 200?(50 / 200) * 100 = 0.25 * 100 = 25%
To find the percentage change between two numbers, you subtract the old value from the new value, divide by the old value, and then multiply by 100.
Formula: Result = ((New Value - Old Value) / Old Value) * 100
Example: What is the percentage increase from 150 to 200?((200 - 150) / 150) * 100 = (50 / 150) * 100 ≈ 33.33%