SOLUTION: I need help on this problem. I would like to know how to solve this problem. 30 people are shopping in A music store. 45 minutes later , there are 13 people in the store. What is t

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: I need help on this problem. I would like to know how to solve this problem. 30 people are shopping in A music store. 45 minutes later , there are 13 people in the store. What is t      Log On


   



Question 1020097: I need help on this problem. I would like to know how to solve this problem. 30 people are shopping in A music store. 45 minutes later , there are 13 people in the store. What is the percent of decrease in the number of people in the store?
Found 2 solutions by ewatrrr, solver91311:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
What is the percent of decrease in the number of people in the store?
%28%2830-13%29%2F30%29%28100%29

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Percent increase or decrease. Subtract the ORIGINAL number from the NEW number. Divide the difference by the ORIGINAL number. Multiply by 100 and affix a percent sign. If the result is positive, then you have a percent increase. If the number is negative, you have a percent decrease.

John

My calculator said it, I believe it, that settles it