Calculate percentages with ease using our advanced percentage calculator. Multiple calculation modes, real-time results, and step-by-step explanations.
Calculate what percentage of a number is another number.
Example: What is 25% of 200?
Answer: 50
Add or subtract a percentage from a value.
Example: Increase 100 by 20%
Answer: 120
Find the percentage change between two values.
Example: From 80 to 100
Answer: +25% increase
Find what percentage one number is of another.
Example: 30 is what % of 150?
Answer: 20%
Select the appropriate tab based on what you want to calculate.
Input the numbers in the appropriate fields. Decimal values are supported.
Click the calculate button to get instant results with detailed explanations.
Get your answer along with the calculation breakdown and formula used.
Use the "What Percentage" tab. Enter the part value and the whole value, then click calculate. The formula is: (Part ÷ Whole) × 100 = Percentage.
Percentage increase adds a percentage to the original value. Percentage change calculates the difference between two values as a percentage of the original.
Yes! Our calculator supports decimal values up to 2 decimal places for precise calculations.
Our calculator provides results accurate to 2 decimal places, which is suitable for most financial and academic applications.
Common uses include calculating discounts, tax amounts, tips, grade percentages, investment returns, and sales increases.
Use the "Percentage Decrease" option. Enter the original price and the discount percentage to find the final price after discount.
For compound changes, apply each percentage change sequentially. Use the result of the first calculation as input for the second.
Yes! Our calculator is perfect for business applications like calculating profit margins, growth rates, and financial ratios.
A negative percentage indicates a decrease. For example, -20% means a 20% reduction from the original value.
Use the percentage change calculator with your measured value as "new" and actual value as "old" to find the percentage error.