Instructional Activity# Example 3: Finding a Percent Increase or Decrease

Lesson 4. Unit 4. Grade 7 EngageNY

EngageNY4 min(s)

This Instructional Activity is a part of the Lesson 4, Unit 4, Grade 7. Students understand from earlier lessons how to convert a fraction to a percent. A common error in finding a percent increase or decrease (given the before and after amounts) is that students do not correctly identify the quantity (or part) and the whole (the original amount).