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Percentage Calculator
Four quick calculators in one place: percent of a number, marks percentage, percentage change and price after discount.
How do I calculate a percentage?
To calculate a percentage, divide the part by the whole and multiply by 100. For example, 432 marks out of 500 is 432 ÷ 500 × 100 = 86.4%. Fileora's calculator also finds X% of a number, the percentage increase or decrease between two values, and the price after a discount, as you type.
Percentage Calculator in 3 steps
Pick a calculator
Choose the question you want to answer.
Type the numbers
Results update as you type.
Use the answer
Copy it into your assignment, bill or form.
How do I convert CGPA to percentage?
Many Indian boards and universities use percentage = CGPA × 9.5, so 8.2 CGPA is about 77.9%. Your university may use a different formula, so check your marksheet or rulebook.
What is the difference between percent and percentage points?
If interest goes from 8% to 10%, it rose by 2 percentage points, but by 25 percent (2 is 25% of 8). The change calculator shows the percent change.
Updated 06 October 2026 · Made by the Fileora team
Questions people ask
How do I calculate my marks percentage?
Divide the marks you scored by the total marks and multiply by 100. For example, 432 out of 500 is 432 ÷ 500 × 100 = 86.4%.
How do I calculate percentage increase?
Subtract the old value from the new value, divide by the old value and multiply by 100. From 40,000 to 46,000 is a 15% increase.
How do I find 18% of a number?
Multiply the number by 18 and divide by 100. 18% of 2,500 is 450.
How do I calculate the price after a discount?
Multiply the price by (100 − discount) ÷ 100. ₹1,999 with 30% off is ₹1,399.30.
How do I add 18% GST to a price?
Multiply the price by 1.18. ₹1,000 plus 18% GST is ₹1,180. For full invoices, use the GST Invoice Generator.