How are these numbers calculated?

Big Games

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

Week of 11/10100.0*Chance in playoffs100.0*Average seed
Alex 106.5 Brett 86 -1.9
-0.4
Jordan 87.1 Cary 99.2 +1.1
Andrew 137.5 Brian 94.6 +0.6
+0.1
Houston 128.8 Tron 105.6 -0.0
If winner is:HomeAway
Week of 11/17100.0*Chance in playoffs100.0*Average seed
Cary vs Brett-4.6+2.4
-0.5+0.3
Brian vs Houston-1.6+0.8
-0.2+0.1
Tron vs Jordan+1.0-0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
93-0In208011,542,440
82-1In0911713,817,846
71-291.4%4504717004,999,641
60-322.5121472910493,553
Total:97.4%8781110200030,853,480
Games Above .500
Chance Will Make Playoffs