Free Tool

Percentage Calculator

Calculate percentages, increases, decreases, and changes in seconds.

What is X% of Y?

Percentage (%)

% of

Number

X is what % of Y?

Value (X)

is % of

Total (Y)

Percentage Change / Increase / Decrease

From (Old Value)

→

To (New Value)

Add or Remove a Percentage from a Number

Number

Percentage (%)

How to Use Percentage Calculator

Choose Calculation Type

Select from: % of number, % change, % increase/decrease, or X is what % of Y.

Enter Your Numbers

Fill in the input fields with your values.

Get Instant Result

The answer appears immediately with a clear explanation.

Percentage Calculator — Fast, Free & Accurate

Our free Percentage Calculator handles all common percentage calculations — from finding the percentage of a number to calculating percentage increase, decrease, and change. No need to remember formulas; just enter your numbers and get the answer instantly.

Types of Percentage Calculations

What is X% of Y? — Find a percentage of any number
X is what % of Y? — Find what percentage one number is of another
Percentage Change — Calculate increase or decrease between two values
Add/Remove a Percentage — Add tax, discount, or markup to a price

Percentage Calculator for Business

Business owners, students, and professionals across Pakistan use our calculator daily for GST calculations, profit margins, salary increases, discount calculations, and exam score percentages. It saves time and eliminates errors.

Common Percentage Examples

Calculate 17% GST on a product price in Pakistan
Find out your exam percentage when marks out of total are given
Calculate salary increment percentage
Work out profit/loss percentage on a trade

Frequently Asked Questions

How do I calculate percentage of a number?

To find X% of Y: multiply Y by X, then divide by 100. Example: 20% of 500 = (500 × 20) ÷ 100 = 100.

How do I calculate percentage increase?

Percentage increase = ((New Value - Old Value) ÷ Old Value) × 100. Example: from 200 to 250 = ((250-200)÷200)×100 = 25% increase.

What is the percentage decrease formula?

Percentage decrease = ((Old Value - New Value) ÷ Old Value) × 100. Example: from 500 to 400 = ((500-400)÷500)×100 = 20% decrease.

How do I find what percentage X is of Y?

Divide X by Y and multiply by 100. Example: 25 is what % of 200? = (25÷200)×100 = 12.5%.

What is percentage change?

Percentage change measures the relative change between two values. A positive result means increase; negative means decrease.