[RESOLVED] Figuring Percentage

[Arc]

Hey guys, I have a math problem for php.

I have a rating system on my site that I want to display a percentage.

The ratings are from 1 to 5.

Say I had 4 votes and they were 2,3,4,5 how would I figure the percentage?

I tried 4 votes divided by the total (in this case 14) times 100, but that's not coming out right.

Anyone have any insight?

Thanks!

[bradgrafelman]

Percentage? What would a percentage have to do with this? I would think that you want the average rating, which in this case would be a 3.5

While I don't understand the application, you could take the total, divide by number of votes (4) to get the average. The average, 3.5, is then divided by the total number of choices, in this case 5 and multiply by 100. Now you have the average percentage, assuming a rating of 1 is 0% and a rating of 5 is 100%.

[Arc]

Thanks a lot man. I am not sure why they want % instead of average. But this seems to work fine. 🙂

[Weedpacket]

Who's "they"?

[bradgrafelman]

SHHHH ducks down behind something don't let THEM hear you.