# How to Calculate Percentage Increase: Definition and Formula

Are you figuring out how much something has improved or grown?

Or looking for how to calculate percentage increase?

Well, many people easily calculate percentage or **aggregate percentage** but while doing percentage increase calculation, they get confused and unable to calculate it.

However, calculation of percentage increase is easy to find!

While you are comparing prices, academic marks, or tracking performance in any category, this guide will help you to calculate.

## What is percentage increase?

If the product’s price or value or amount has grown compared to its original amount or value, the percentage change value is percentage increase.

For example, if a product’s price rises from $100 to $120, you want to know by what percentage the price has gone up.

## How to Calculate Percentage Increase?

### Formula for Percentage Increase

To calculate percentage increase, use this formula:

$PercentageIncrease=\frac{(NewValue-OldValue)}{OldValue}\times 100$Let’s break it down:

**Find the Difference:**Subtract the old value from the new value.

Difference=New Value−Old Value

**2.** **Divide the Difference by the Old Value:**

**3. Convert to Percentage:** Multiply the ratio by 100.

Percentage Increase = Ratio×100

### Example for Percentage Increase

Let’s suppose you bought a notebook for $100, and now it costs $120. Here’s how to find the percentage increase:

**Calculate the Difference:**

120 – 100 = 20

**2. Divide by the Old Value:**

**3. Convert to Percentage:**

0.20 ×100=20%

Now, we find that the percentage increase of book price is 20%.

### Why It Matters?

Understanding percentage increases helps you make better decisions.

The percentage increase can be obtained anywhere if you have the right tool to calculate it.

It is commonly use anywhere.

It is not just about academics; you can use it in many areas like budgeting, shopping, businesses, investing, and even measuring personal growth.

### Tips for Accuracy

**Double-Check Your Values:**Make sure you are using the correct old and new values.

**Always put older value to divide:**If you are doing calculation increase manually, then you have to put always the older value to divide.

**Watch for Negative Increases:**If the new value is less than the old value, you’ll be calculating a percentage decrease, not an increase.

### Conclusion

Calculating percentage increase is easy once you know the steps.

By mastering this simple calculation, you will be equipped to handle various scenarios, from financial decisions to tracking your progress, from school projects to professional projects.

Are you ready to put your new skill to use?

Try it out next time whenever you need to measure how much something has grown.

You might find it is easier than you thought!

Happy calculating!