Thread: Percentage problem

Hi, I'm trying to figure out a math problem for my mom. It's mainly percentages and algebra I believe. At her work, each person is supposed to donate $125 for birthdays through out the year but not everyone donated $125. There are 14 total people and 10 people donated the full $125, one person donated $60, one donated $70, one donated $90, and one person donated $80. So the total donated was $1550 and $1113 was left over. So I need to figure out how to evenly distribute the $1113 that was left over to the 14 people that gave the money. I realize that the 10 people that donated the full $125 supplied 80% of the total amount donated and the remaining gave 20%. I figured out the percentage given for each person but when I calculated their share it still did not seem fair. I am just having difficulty figuring out how much each person should give back. Can anyone give me any ideas on how to solve this problem? Thanks!

1550 - 1113 = $437 spent

to be fair ...

437/14 = 31.21

everyone should get back 31.21 less than they contributed

Wow! Thank you so much, I didn't think about it that way.