What's up with the percentages? Zero points gets 13%, 6% or 5% depending on the answer, while 122 points gets 1%, and 133 points gets 1%. I'm intrigued to know

What's up with the percentages? Zero points gets 13%, 6% or 5% depending on the answer, while 122 points gets 1%, and 133 points gets 1%. I'm intrigued to know what the logic behind the percentages is, considering the solution is so simple (points/total*100) I'd love to know how the code was developed to get it so spectacularly wrong. (It's probably the same code which gives you an "Unknown or expired link" message when you try and make a post after reading comments for more than five minutes... get those Reddit guys over here to sort this out!)