Percent Increase and Decrease

Percent Increase and Decrease

Introduction

Percent increase and percent decrease describe how much a quantity changes compared to its original amount. These concepts are used to measure growth and reduction in real-world situations.

A video game controller was originally priced at $40. During a holiday sale, the price dropped to $30.

To find the percent change from the original price to the sale price, first, subtract the sale price from the original price, which gives $10.

Next, divide the decrease by the original price to find the percent change, which gives ...