Percentage Difference Calculator – Easily Compare Two Numbers

Have you ever looked at two numbers and wondered, “How different are they in percentage?”
Maybe a product’s price went from $50 to $65, and you want to know how much it increased — but without doing the math manually.
That’s where the Percentage Difference Calculator comes in handy!

What Is Percentage Difference?

Percentage difference measures how much two numbers differ from each other relative to their average.
Unlike percentage change, it doesn’t care whether the value goes up or down — it simply tells you how far apart the two values are in percentage terms.

In simple words:

The percentage difference shows how different two values are, based on their average.

The Formula

Here’s the formula for calculating percentage difference:

$$\text{Percentage Difference} = \frac{|A – B|}{(A + B)/2} \times 100$$

  Where:

• A = First value

• B = Second value

• |A – B| = The absolute difference between A and B

Example

Let’s say you’re comparing two prices:

• Old price = $50

• New price = $65

Now apply the formula:

$$\frac{|65 – 50|}{(65 + 50)/2} \times 100 = 26.1\%$$

✅ Result: The percentage difference between $50 and $65 is 26.1%.

How to Use the Calculator

Using the Percentage Difference Calculator is super easy:

1. Enter the first value (A)

2. Enter the second value (B)

3. Click Calculate

4. The tool will instantly display the percentage difference

No need for manual math or memorizing formulas — it’s quick, accurate, and simple!

When to Use a Percentage Difference Calculator

This tool is useful in many real-life situations, such as:

• Comparing prices before and after discounts

• Checking experimental results in science

• Measuring financial performance or growth

• Analyzing market trends or data deviations

• Evaluating accuracy or measurement differences

Whether you’re a student, researcher, or business analyst, this calculator helps you interpret data clearly and efficiently.

 Why Use Our Percentage Difference Calculator

✔️ Fast, accurate, and reliable results
✔️ Works with all number types (positive, negative, decimals)
✔️ Easy-to-use interface — no math required
✔️ Great for students, teachers, investors, and analysts

The Percentage Difference Calculator isn’t just a math tool — it’s a quick and powerful way to understand how two values compare.
Instead of struggling with calculations, let this handy tool do the work for you — in seconds!

Try it now: enter two numbers, hit “Calculate,” and see the percentage difference instantly!