**Finance and Investment**: It can help investors and financial analysts calculate the rate of return on investments, stock price changes, or the performance of assets over time.
**Retail and Sales**: Businesses can use it to determine the percentage change in sales or revenue between two periods, aiding in performance analysis and strategy development.
**Economics and Market Research**: Economists and market researchers can evaluate changes in economic indicators like inflation rates, GDP growth, or market demand.
**Real Estate**: It can be useful in real estate to calculate the % change in property values, rent prices, or market trends.
**Educational Purposes**: Teachers and students use it in mathematics and economics classes to understand and calculate percentage changes, a fundamental concept in many areas of study.
**Healthcare and Epidemiology**: In healthcare, it can be used to assess changes in patient health metrics, while in epidemiology, it can help in understanding the rate of spread of diseases.
**Salary and Wage Analysis**: Employees and employers can calculate percentage increases or decreases in salaries or wages over time.
**Data Analysis**: Analysts can use it to interpret data trends, understand growth patterns, and make predictions based on historical data.
**Manufacturing and Production**: It can assist in evaluating changes in production levels, efficiency, or resource usage.
**Environmental Studies**: It can be used to analyze changes in pollution levels, temperature variations, or other environmental metrics.

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## How to Calculate Percent Change

**Percentage Change** = ( ^{(Ending Value−Starting Value)}⁄_{Starting Value} ) ×100

This formula calculates the percentage difference between the starting value and the ending value relative to the starting value. Here’s a breakdown of the formula:

**Subtract the Starting Value from the Ending Value**: This gives you the change in value.
**Divide the Change in Value by the Starting Value**: This calculates the change as a fraction of the starting value.
**Multiply by 100**: Converting the fraction to a percentage.

If the result is positive, it indicates a percentage increase; if negative, it indicates a percentage decrease. This formula is a standard way to measure the relative change between two numbers and is widely used in various fields, including finance, economics, and general data analysis.