How are these numbers calculated?

Big Games

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

Week of 11/16100.0*Chance in playoffs100.0*Average seed
retnuh101 107.98 imjoshb 108.22 +28.8
+1.0
Sh0wbizChiz 120.64 Vacar 83.82 +7.9
+0.1
a0ashle 93.12 BillyDaButcha 97.38 -2.0
OprahsTit 141.86 DarkPC 87.8 -1.4
-0.1
Week of 11/23100.0*Chance in playoffs100.0*Average seed
DarkPC 61.7 imjoshb 123.32 +7.2
+0.3
asmitty 106.92 Vacar 104.02 +6.8
+0.1
BillyDaButcha 106.56 retnuh101 130.58 -3.2
-0.1
a0ashle 110.44 OprahsTit 140.58 +0.4
-0.0
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
imjoshb vs OprahsTit+1.5-1.1
BillyDaButcha vs DarkPC-0.1+0.4
retnuh101 vs a0ashle-0.1+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In10022,923,028
70-1In336731,075,604
Total:In42193953,998,632
Games Above .500
Chance Will Make Playoffs