How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
AM 98 BSMW 90 +19.3
+1.1
MWJW 106 MB 55 -6.8
-0.3
JR 86 JS 69 +1.3
+0.1
NF 49 RF 91 +0.1
CD 82 BD 91 -0.1
Week of 11/24100.0*Chance in playoffs100.0*Average seed
MB 108 AM 111 +1.2
+0.3
JS 60 MWJW 94 -1.2
-0.3
BD 73 GDSH 119 -1.1
BL 71 JR 126 -0.3
RF 80 CD 108 -0.1
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
GDSH vs MWJW+3.8-3.8
+0.5-0.5
AM vs JS+3.8-3.8
+0.5-0.5
NF vs BD-0.9+0.9

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
91-092.4%4926413811,571,650
80-184.821430301511,573,478
Total:88.6%351517221123,145,128
Games Above .500
Chance Will Make Playoffs