Percentage Calculator: Marks, Discounts & Percentage Change

A percentage calculator solves everyday percentage problems in seconds — from exam marks to shopping discounts to price changes.

Find X% of a number

Result = (X / 100) × number. For example, 25% of 200 = 50.

Marks percentage

Percentage = (marks obtained / total marks) × 100. For example, 450 out of 500 = 90%.

Percentage increase or decrease

Change % = ((new value − old value) / old value) × 100. Going from 1,000 to 1,250 is a 25% increase.

Discount price

Saving = original price × discount % / 100; final price = original − saving. A 20% discount on ₹2,000 saves ₹400, so you pay ₹1,600.

How to use our free percentage calculator

1. Open the percentage calculator.
2. Choose the type of calculation you need.
3. Enter the values.
4. Click Calculate to get the answer instantly.