Percentage Calculator
Calculate percentages, percentage change, margin, markup, and more instantly
How to Use Percentage Calculator
- Switch between the five tabs to pick the calculation you need
- Enter your values and see results update instantly as you type
- Use the copy button to grab the result to your clipboard
Frequently Asked Questions
How do I calculate what percentage of a number is?
Use the "X% of Y" tab. Enter the percent and the number — for example, 25% of 200 gives 50. The formula is (percentage / 100) × number.
How do I find what percent one number is of another?
Use the "Y is ?% of X" tab. Enter the part and the total — for example, 50 is 25% of 200. The formula is (part / total) × 100.
How do I calculate the total from a percentage and a value?
Use the "Y is X% of ?" tab for reverse percentage calculations. Enter the value and the percentage — for example, if 50 is 25% of something, the total is 200. The formula is value / (percentage / 100).
How is percentage change or percentage increase/decrease calculated?
Use the "Change" tab. Enter the original value and the new value. Percentage change = ((new − old) / |old|) × 100. A positive result means a percentage increase, negative means a percentage decrease. The absolute difference is also shown.
How do I calculate profit margin and markup?
Use the "Margin" tab. Enter your cost and selling price. Profit margin = ((price − cost) / price) × 100, and markup = ((price − cost) / cost) × 100. The profit amount is also displayed.
What is the difference between margin and markup?
Margin is profit as a percentage of the selling price, while markup is profit as a percentage of the cost. For example, a product that costs 60 and sells for 100 has a 40% margin but a 66.67% markup.