Question

How do you find the percent increase and decrease?

Answer 1

Example question: In January, the depth of a lake was 873 feet. In August, the depth of the lake was 654.75 feet. What is the percentage decrease of the depth of the lake from January to August?

Answer 2

http://www.skillsyouneed.com/num/percent-change.html

Answer 3

http://www.mathgoodies.com/lessons/percent/change.html

Answer 4

tell me if that helps

Answer 5

Thank you! @HELPMEPLZ!!

Answer 6

you're welcome!

Answer 7

\(percent~change = \dfrac{new~amount - old~amount}{old~amount} \times 100\%\)

If the percent change is positive, it is a percent increase. If it is negative, it is a percent decrease.