Don't lose your points!

+

# MATH

##### Rating:
(0)
Author: Ashley Zheng
##### Description:

Math is very a very important skill in our world. Know your math today

(more)

## Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

No credit card required

28 Sophia partners guarantee credit transfer.

263 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 25 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

## Percent of Change

Percent of change is the ratio of change is a given amount as a percent. The percent of decrease is a number lesser than the original number. The percent of increase is a number greater than the original number. To find the percent of change you have to take the new number and subtract it to the original number. Then put the change on the top ( whether it's a negative or not) and the original number on the bottom. Even if the top number is greater, DO NOT PUT IT INTO A MIXED NUMBER!!!!!!!!!! Instead put it into a improper fraction!!!! Then you can equal it to r/100. That way you can have a percentage that is easy to figure out.

!

25 - 75 = -50

-50(100) = 75r

- 66.67% = r

100 - 75 = 25

25(100) = 75(r)

33.34% = r