Home
Grade 1Grade 2Grade 3Grade 4Grade 5Grade 6Grade 7Grade 8Grade 9Grade 10Math Themes
Explorers (Grades 1-3)Explorers Elite (1-3)Navigators (Grades 4-6)Navigators Elite (4-6)Challengers (Grades 7-9)Challengers Elite (7-9)Schedule an Evaluation
Mobius MethodFlexible ClassesCompanySupport
Pricing
Ctrl+k
Sign InJoin

Percent change in a shrinking number

Teaching Transcript

🎙️

What is the percent change if 80 shrinks to 64?

First we need to find the absolute change by subtracting. It's a change of 16

Now, what percent of 80 is 16

We know that 8 is 10% of 80. 16 is twice that, so 16 is 20% of 80

So shrinking from 80 to 64 is a decrease of 20%

This math skill teaches how to calculate percent change when a number decreases. It involves finding the absolute difference between the initial and new numbers, then determining what percentage this difference represents of the original number.

Skill Practice

Percent change in a shrinking number

Test your understanding of percent change in a shrinking number by practicing it! Work through the below exercises to use it in practice.