A Percentage Calculator helps you quickly find percentage values such as increase, decrease, discounts, marks, or ratios. It’s useful for daily calculations like “What is 25% of 450?” or “What percent is 30 out of 80?”.

To calculate a percentage manually, use this formula:
(Part / Total) × 100
Example: (30 ÷ 80) × 100 = 37.5%.

Enter both numbers into the calculator — for example, “What percent is 45 of 120?” The result will be 37.5%.

Use this formula:
Percentage Change = ((New Value - Old Value) / Old Value) × 100
Example: From 50 to 60 → ((60 - 50) / 50) × 100 = 20% increase.

If an item costs ₹2000 and there’s a 10% discount, enter 10% and 2000 — the calculator will show the discount amount ₹200 and the final price ₹1800.

Yes! For example, if you scored 420 marks out of 500, enter (420, 500) → Result: 84%.

• Percentage of a number
• Percentage increase or decrease
• Discount percentage
• Profit or loss percentage
• Marks percentage
• Tax or interest percentage

Yes, it’s completely free and works instantly online without any registration.

Yes, it provides accurate mathematical results for all percentage-based calculations. However, for complex financial or tax calculations, consult a financial expert.

Absolutely! The calculator is fully responsive and works smoothly on all mobile and tablet devices.