What is percentage difference?

Percentage difference measures how much one value differs from another as a percentage of the average.

📈 Percentage Calculator

Calculate percentages, increases, and decreases instantly

What is ___% of ___?

Of Number

Result

What percentage is ___ of ___?

Of Y

Percentage

From (Original Value)

To (New Value)

Increase

From (Original Value)

To (New Value)

Decrease

From (Original Value)

To (New Value)

Change

What is a Percentage Calculator?

A percentage calculator helps you compute percentages quickly and accurately. Whether you need to find what 20% of 500 is, or calculate the percentage increase between two numbers, this tool does it instantly.

How to Use

Choose the type of calculation from the tabs
Enter the values
Click Calculate
Get instant result

Common Percentage Formulas

X% of Y: (Y × X) ÷ 100
X is what % of Y: (X ÷ Y) × 100
Percentage Increase: ((New - Old) ÷ Old) × 100
Percentage Decrease: ((Old - New) ÷ Old) × 100

Frequently Asked Questions

How do I calculate a percentage?

To find X% of Y: multiply Y by X, then divide by 100.

How do I calculate percentage increase?

Percentage increase = ((New Value - Old Value) / Old Value) × 100.

Is this tool free?

Yes, 100% free. No signup, no limits.