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
Andrew 137.5 Brian 94.6 -8.0
-0.4
Jordan 87.1 Cary 99.2 +7.0
+0.1
Alex 106.5 Brett 86 +0.7
+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
Brian vs Houston+15.7-8.0
+0.7-0.4
Cary vs Brett-6.3+3.3
Tron vs Jordan+6.8-2.0
+0.2-0.1
Bo vs Andrew-0.1+0.0

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
83-0In0405554,996,378
72-196.1%8088030014,422,739
61-250.70512918209,912,705
50-32.127533351,521,658
Total:77.5%01016601192030,853,480
Games Above .500
Chance Will Make Playoffs