Percentage Calculator
Calculate percentages, increases, and decreases instantly
Basic
Increase
Decrease
Result: 0
What is a Percentage Calculator?
A percentage calculator helps you quickly calculate percentages, increases, and decreases without manual math. It is useful in daily life, business, and education.
How to Calculate Percentage?
To calculate percentage, multiply the number by the percentage and divide by 100.
Formula
(Percentage ÷ 100) × Number
Examples
20% of 200 = 40
Increase 100 by 10% = 110
Decrease 100 by 10% = 90
FAQs
How do I calculate percentage increase?
Multiply original value by (1 + percentage/100).
How do I calculate percentage decrease?
Multiply original value by (1 – percentage/100).
Is this calculator free?
Yes, this percentage calculator is completely free to use.