math Calculator
Percentage Calculator
Calculate percentages easily. Find what percent one number is of another, calculate percentage increase or decrease, and find a percentage of any number.
01000000000000
%
01000000
Results
Result
0
Remaining (100% - %)
0
Ratio (value : result)
0
How to Use Percentage Calculator
- 1
Enter the base value
- 2
Enter the percentage
- 3
View the result and remaining amount
Percentage Calculator Formula
Result = Value × (Percent / 100)Example Calculation
Input Values
Value
200
Percentage (%)
15 %
Results
Result
30
Remaining (100% - %)
170
Ratio (value : result)
6.67
Frequently Asked Questions
How do I find what % one number is of another?
Divide the part by the whole and multiply by 100. E.g., 30/200 × 100 = 15%.
How do I calculate percentage increase?
((New - Old) / Old) × 100. E.g., (120 - 100) / 100 × 100 = 20% increase.
What is percentage decrease?
((Old - New) / Old) × 100. E.g., (100 - 80) / 100 × 100 = 20% decrease.