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
JR 86 JS 69 +21.3
+1.0
AM 98 BSMW 90 -1.9
-0.1
MWJW 106 MB 55 -1.8
-0.1
CD 82 BD 91 -0.2
NF 49 RF 91 +0.2
Week of 11/24100.0*Chance in playoffs100.0*Average seed
BL 71 JR 126 +3.8
+0.2
BD 73 GDSH 119 +1.3
+0.1
RF 80 CD 108 +0.4
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
NF vs BD+5.3-5.3
+0.3-0.3
JR vs CD+4.7-4.7
+0.7-0.7

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
91-086.3%2352381411,575,336
80-176.946302311,569,792
Total:81.6%122625191823,145,128
Games Above .500
Chance Will Make Playoffs