How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/22100.0*Average seed
Graham 125 Tim 175 +0.2
Mahoney 147 Ben 125 -0.1
If winner is:HomeAway
Week of 11/29100.0*Average seed
Tim vs Brenden+0.1-0.1
Mahoney vs Eric-0.1+0.1

What If

Chances based on how well the Tim finish out the regular season.   Explain

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
10-11In10019,282,424*
90-2In75256,435,512
Total:In94625,717,936

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs