Calculate percentages, percentage changes, and more with ease
Calculate what percentage of a number is
200 × 15% = 30
Change = (60-50)/50 × 100 = 20%
25 ÷ 100 × 100 = 25%
80 + 25% = 80 × 1.25 = 100
• To find X% of Y: Multiply Y by X and divide by 100
• To find what % X is of Y: Divide X by Y and multiply by 100
• To increase by X%: Multiply by (1 + X/100)
• To decrease by X%: Multiply by (1 - X/100)
• Percentage change: (New - Old) ÷ Old × 100
Our comprehensive percentage calculator handles all types of percentage calculations with ease and accuracy. Whether you're calculating discounts, markups, percentage changes, or finding parts of a whole, this tool provides instant results and clear explanations.
Handle various percentage scenarios
See exactly how calculations work
Learn with practical examples
Select the calculation type you need, enter your values, and click calculate. The calculator will show you the result along with a detailed explanation and the mathematical formula used. Use the quick examples to understand different percentage scenarios.
Remember that percentages are always out of 100. To find 25% of 200, think of it as 25/100 × 200 = 50. This mental math can help you verify your calculator results quickly.