Display Title
Definition--Ratios, Proportions, and Percents Concepts--Percent Decrease
Display Title
Percent Decrease
Topic
Ratios, Proportions, and Percents
Definition
Percent decrease measures the reduction in value expressed as a percentage of the original value.
Description
Percent decrease is used to quantify the reduction in value over time, expressed as a percentage of the original value. It is commonly used in finance, economics, and everyday scenarios such as price reductions and weight loss.
For example, if the price of a jacket drops from $80 to $60, the percent decrease is calculated as
(80 − 60)/80 × 100 = 25%.
In math education, understanding percent decrease helps students analyze changes in data, make informed decisions, and apply mathematical reasoning to real-world problems.
Teacher’s Script: "If a stock's price falls from $100 to $75, the percent decrease is ( 100 − 75)/100 × 100 = 25%."
For a complete collection of terms related to Ratios, Proportions, and Percents click on this link: Ratios, Proportions, and Percents Collection.
| Common Core Standards | CCSS.MATH.CONTENT.6.RP.A.1, CCSS.MATH.CONTENT.6.RP.A.2, CCSS.MATH.CONTENT.6.RP.A.3, CCSS.MATH.CONTENT.7.RP.A.3, CCSS.MATH.CONTENT.HSG.SRT.A.1.B |
|---|---|
| Grade Range | 6 - 8 |
| Curriculum Nodes |
Algebra • Ratios, Proportions, and Percents • Percents |
| Copyright Year | 2021 |
| Keywords | ratios, Percent, definitions, glossary terms, rates, proportions |
