# Percent Change Calculator

Percent Change Calculator is an online tool that helps to calculate the percent increase or percent decrease from one number to another. Percent change is used to denote the degree of change exhibited by a quantity over a period of time.

## What is a Percent Change Calculator?

Percent Change Calculator helps to compute the percent change from one number to another. It is used to calculate the degree of increase or decrease of a quantity over a certain time period. To use the * percent change calculator* enter the values in the given input boxes.

### Percent Change Calculator

## How to Use Percent Change Calculator?

Please follow the steps given below to find the percentage change using the percent change calculator:

**Step 1**: Go to Cuemath's online percent change calculator.**Step 2:**Enter the initial value and final value in the input boxes.**Step 3**: Click on "**Calculate**" to find the percentage change.**Step 4**: Click on "**Reset**" to clear the fields and enter new values.

## How Does Percent Change Calculator Work?

Percent change can be applied to any quantity. The percent change can be both a positive and a negative value. A positive value indicates that the quantity has increased over a period of time. Similarly, a negative value shows that the quantity has decreased in a given time period. The concept of percentage change is widely used in the field of finance. Banks use the percent change to track the price of a security. Further, percentage change is also used to compare the prices of various currencies. The steps to calculate the percent change between an old value and a new value are as follows:

- Subtract the initial value of a quantity from its final value.
- Divide the value obtained in step 1 by the initial value.
- Multiply the result by 100 to get the percent change.

The percent change is calculated using the formula:

Percent change = ((Final value - Initial value) / initial value) × 100

## Solved Examples on Percent Change

**Example 1:** Find the percent change if 70 is increased to 150 and verify it using the percent calculator.

**Solution:**

Given: Initial value = 70, Final value = 150

Percent change = ((Final value - Initial value) / initial value) × 100

= ((150 - 70) / 70) × 100

= (80 / 70) × 100

= 1.142 × 100%

= 114.28%

Since the answer is positive, it is a percent increase.

**Example 2:** Find the percent change if a quantity goes from 90 to 20 and verify it using the percent calculator.

**Solution:**

Given: Initial value = 90, Final value = 20

Percent change = ((Final value - Initial value) / initial value) × 100

= ((20 - 90) / 90) × 100

= (-70 / 90) × 100

= -0.7778 × 100

= -77.78%

Since the answer is negative, it is a percent decrease.

Similarly, you can try the percent change calculator to find the percent change for the following values.

- Initial value = 180, Final value = 250
- Initial value = 120, Final value = 100

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