Calculate the percentage difference between two values with our easy-to-use calculator
Percentage difference measures the relative difference between two values as a percentage of their average. Formula: |Value 1 - Value 2| / ((Value 1 + Value 2) / 2) × 100%
Percentage difference measures the relative difference between two values as a percentage of their average. It's used when comparing two values where neither is considered a reference point.
Percentage Difference = |Value 1 - Value 2| / ((Value 1 + Value 2) / 2) × 100%
If one city has a population of 500,000 and another has 600,000, the percentage difference is:
|500,000 - 600,000| / ((500,000 + 600,000) / 2) × 100% = 18.18%
Use percentage difference when:
Understanding the difference between two numbers in percentage form can be useful in everyday life whether you’re comparing prices, test scores, or tracking data changes. That’s where a Percentage Difference Calculator comes in handy. This tool takes the guesswork out of math and makes your comparisons quick and easy.
Let’s walk you through what percentage difference means, how it works, and how you can calculate it manually or with a calculator no math degree required!
In simple terms, percentage difference tells you how far apart two numbers are in relation to their average. It’s a way to show how much one value differs from another in percentage terms, instead of just saying “it’s 10 more” or “20 less.”
· Useful in finance, shopping, research, and more
Here’s the percent difference formula that powers most calculators:
Percentage Difference = |Value 1 – Value 2| ÷ [(Value 1 + Value 2) ÷ 2] × 100
Let’s say you’re comparing two prices: $50 and $40.
Result: The percentage difference is 22.22%
Simple, right?
Here’s how calculating percentage difference helps in everyday situations:
Here are some popular ways people use a percentage difference calculator:
These terms often get mixed up, but they mean different things.
Use the formula:
(|A - B| ÷ average of A and B) × 100
Use an online Percentage Difference Calculator – just enter two numbers and get instant results.
No. Percent difference compares both numbers equally. Percent change is directional (from old to new).
Yes! The formula uses absolute values, so negatives won’t affect your result.
Using the average gives a balanced comparison when neither number is the "original" value.
A Percentage Difference Calculator is a powerful tool for quick, accurate comparisons between any two numbers. Whether you’re shopping smart, reviewing scores, or analyzing business data, this simple calculation can give you real insights in just seconds.
Next time you want to calculate the percentage difference, skip the mental math and try a free online Percentage Calculator — it’s fast, simple, and user-friendly.
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