What is the mathematical solution/algorithm for thumbs up/down rating system? I want to display the rating like the one we usually see on the tube sites like:
Thumbs up btn | Ratings here | Thumbs down btn
but i'm not sure what calculation to use. I tried the:
Thumbsup / Thumbsdown * 100 but it gives me result morethan 100%.
Example: 6/2*100 = 300
Assuming you have some thumbsup or some thumbsdown (if not then displaying a percentage would make no sense)
For the percentage Thumbs up:
Thumbsup / (Thumbsup + Thumbsdown) * 100
So in your example
6/(6+2) * 100 = 75%
And likewise with Thumbsdown as the numerator for the percentage thumbs down
thumbsUp / (thumbsUp + thumbsDown) * 100 gives the ratio for thumbs up.
thumbsDown / (thumbsUp + thumbsDown) * 100 gives the ratio for thumbs down.