Difference in Percentage Calculator

The Percentage Difference Calculator helps you quickly find the percent difference between two values. Whether you're comparing prices, analyzing data changes, or reviewing performance metrics, knowing the percentage difference is essential. This tool is especially useful for students, business analysts, investors, and everyday users who want to understand how much one number varies from another in percentage terms. Instead of manually applying the formula every time, our calculator provides instant results and saves you time.

For example, if you're checking how much your electricity bill has increased this month compared to last month, or you're comparing sales figures year-over-year, the percentage difference gives a clear view of the change. It doesn’t matter whether the values are increasing or decreasing—the calculator works for both. And since it handles both positive and negative results, you can easily tell whether the value went up or down.

What is Percentage Difference?

Percentage difference is the absolute change between two values, expressed as a percentage relative to their average. It shows how much two numbers differ from each other in relation to their size. It is commonly used in statistics, finance, science, and everyday comparisons where relative change matters.

Percentage Difference Formula

Percentage Difference = |Value 1 - Value 2| ÷ ((Value 1 + Value 2) / 2) × 100

Example Calculation

Suppose you have two values: 120 and 100. Here's how you calculate the percentage difference:

• Step 1: Find the absolute difference → |120 - 100| = 20
• Step 2: Find the average → (120 + 100) / 2 = 110
• Step 3: Divide → 20 / 110 = 0.1818
• Step 4: Multiply by 100 → 0.1818 × 100 = 18.18%

So, the percentage difference between 120 and 100 is 18.18%.

Why Use This Calculator?

• Quick and accurate results for business, academic, or personal use
• Works for both increasing and decreasing values
• Mobile-friendly and instant calculations
• No math knowledge required—just enter the numbers!

Common Use Cases

• Comparing old vs. new product prices
• Analyzing company revenue changes
• Monitoring stock market fluctuations
• Evaluating academic score improvements

FAQs About Percentage Difference

1. What is the difference between percentage difference and percentage change?

Percentage difference compares two values symmetrically and does not consider direction, while percentage change measures increase or decrease relative to one original value.

2. Can percentage difference be negative?

No, percentage difference always returns a positive value because it calculates the absolute difference between the two values.

3. What is a good example of using percentage difference?

Comparing test scores, such as 85 and 95, gives a percentage difference of around 11.11%, showing how far apart the scores are.

4. Does this calculator work with decimals?

Yes, you can enter decimal values and the calculator will still compute the percentage difference accurately.

Conclusion

The Percentage Difference Calculator is a reliable and efficient tool for comparing any two numbers, regardless of context. Whether you're evaluating data in business, academics, or daily life, this calculator simplifies complex comparisons by instantly showing the percentage difference. With an easy-to-use interface and quick results, it’s the perfect companion for your decision-making process. Try it now and gain better insights into your data with just a few clicks!