Eg.
Sheep Unit 100-20 Montana -2016
Total Applicants: 394
Tags: 2
Percent Successful: .51%
Number Applicants with 0 pts: 55
Number Applicants in top point group: 37 (15pts.)
Both tags drawn by Max point holders
First time putting in you have 1 application, at 15 you have 226 applications, so if you calculate total apps you square all the points then add one for the current years app then multiple by applicants in each group and then sum for all point groups, which equals 23219 total "names in the hat" If you have 15 bonus points you have a .97% chance of drawing at 0 points you have a .004% chance of drawing. Essentially someone with 15 bonus points is 250 times more likely to draw than someone with 0 points.
I think I did the math correct, hopefully our resident CPA will let me know if I missed the mark. As per the comments about disadvantaging someone for another... if this was a straight lottery everyone would have the .51% odds to give some people double the lottery odds you are giving another guy 125 times worse than the straight lottery odds.