📊 Percentage Calculator
Quickly calculate percentages, percentage change, and percentage of a number. Essential for students, professionals, and everyday math.
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How to Use
- 1Pick the mode: value/total, % of a number, or % change.
- 2Enter the two numbers in the input fields.
- 3Read the result below — copy or share with one tap.
Frequently Asked Questions
How do I calculate percentage?
Percentage = (Value / Total) × 100. Enter both values and get instant results.
What is percentage change?
Percentage change = ((New - Old) / Old) × 100.
Can I calculate percentage of a number?
Yes — for example, 20% of 500 = 100.