How to Use a Percentage Increase Calculator

A percentage increase calculator is a tool that helps determine the percentage by which a value has grown over time, making it essential for financial analysis, price comparisons, and business performance tracking.

Whether you're analyzing a price hike, salary raise, or company revenue growth, knowing how much a value has increased in percentage terms is a powerful insight. Below, we’ll walk you through how to use the calculator, step-by-step, and explain the logic behind it.

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What Is Percentage Increase?

The percentage increase represents how much a value has risen compared to its original amount. It's calculated with the formula:Percentage Increase=(New Value−Original ValueOriginal Value)×100Percentage Increase=(Original ValueNew Value−Original Value​)×100

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How to Use the Percentage Increase Calculator

Step 1: Enter the Original Value

In the "Original Value" field, type the starting amount.

Example: If an item originally cost $100, enter 100.

Step 2: Enter the New Value

In the "New Value" field, type the new (or updated) amount.

Example: If the item now costs $120, enter 120.

Step 3: Click “Calculate.”

Hit the "Calculate" button, and the result will appear instantly.

Result:

• Increase Amount shows how much more the new value is.
• Percentage Increase tells you by what percent the value has increased.

In our example, the increase is $20, and the percentage increase is 20%.

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Where Can You Use This Calculator?

• Finance – stock growth, investment returns
• E-commerce – product price changes
• Business – sales or revenue performance
• Statistics – analyzing trends over time
• Daily Life – comparing costs or rates

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FAQ – Percentage Increase Calculator

1. What happens if the new value is smaller than the original?
This tool will still calculate it, but it will show a negative increase, indicating a decrease. (You can later add a "Percentage Decrease Calculator" too.)

2. Can I use decimal numbers?
Yes. The calculator accepts decimals (e.g., 105.75).

3. What if I enter 0 as the original value?
The calculator will warn you. The percentage increase cannot be calculated if the original value is zero—it would result in division by zero.

4. Is this calculator accurate for business use?
Yes, it’s suitable for most business or personal needs where you need a fast, clear percentage difference.

5. Can I embed this in my website?
Absolutely. The calculator is built with simple HTML, CSS, and JavaScript. Just paste it into a Custom HTML block on WordPress.