Percentage Calculator
Calculate percent of a value, percent change, missing totals, discounts, tips, and ratios with clear examples.
Percentage Calculator
Five everyday percentage tasks in one place: percent of a value, percent change, finding the base, and tip/discount.
Compute P% of a value V.
P% × V
50
result = V × P / 100
How to use the percentage calculator
The percentage calculator handles the most common percent questions in one place: percent of a number, percent increase/decrease, missing base, and tip or discount math.
- Choose the percentage task that matches your question.
- Enter the known values.
- Read the result and the formula-style explanation.
Formula or method
Percent of a value = (percent / 100) * value.
Worked examples
Find a percent of a value
Problem: What is 20% of 60?
Solution: 20 / 100 * 60 = 12.
Find percent change
Problem: From 40 to 50
Solution: (50 - 40) / 40 * 100 = 25% increase.