Percentage Calculator
ℹ️ How to Use Value A & B
- Percentage Increase/Decrease:
Value A = Old value, Value B = New value.
Example: From 50 to 75 → A = 50, B = 75 - What % is A of B:
Value A = Part, Value B = Whole.
Example: 25 is what % of 100 → A = 25, B = 100 - Value after Percentage:
Value A = Base value, Value B = Percentage to apply.
Example: 20% of 500 → A = 500, B = 20
📘 Frequently Asked Questions – Percentage Calculator
❓ What is a Percentage Calculator?
📊 A percentage calculator helps you compute percentages for various use cases, such as finding the percentage of a number, percentage increase or decrease, and what percent one number is of another.
🧮 How do I calculate percentage of a number?
💡 Multiply the number by the percentage and divide by 100.
25% of 200 = (25 × 200) / 100 = 50
📈 How do I calculate percentage increase or decrease?
🔍 Use:
Percentage Increase = ((New - Old) / Old) × 100
Percentage Decrease = ((Old - New) / Old) × 100
📊 Can I calculate percentage increase, decrease, etc.?
✅ Yes! This calculator supports percentage increase, percentage decrease, finding what percent one number is of another, and reverse calculations.
⚡ Why use an online percentage calculator?
⏱️ It saves time, avoids manual math mistakes, and helps with discounts, taxes, academic grading, finance, and budgeting.
📱 Is this percentage calculator mobile-friendly?
📲 Yes! It works seamlessly across all screen sizes—desktop, tablet, or mobile.