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
Sh0wbizChiz 120.64 Vacar 83.82 +15.6
+1.0
OprahsTit 141.86 DarkPC 87.8 -1.6
NeilFlix 125.5 asmitty 120 +0.7
+0.2
a0ashle 93.12 BillyDaButcha 97.38 +0.4
+0.1
retnuh101 107.98 imjoshb 108.22 -0.3
AmericanKiwi 150.22 jeff_underscore 118.64 +0.2
+0.1
Week of 11/23100.0*Chance in playoffs100.0*Average seed
jeff_underscore 109.38 Sh0wbizChiz 119.96 +21.8
+0.9
BillyDaButcha 106.56 retnuh101 130.58 -6.5
-0.2
a0ashle 110.44 OprahsTit 140.58 +3.4
+0.2
asmitty 106.92 Vacar 104.02 +2.2
+0.1
DarkPC 61.7 imjoshb 123.32 -1.5
-0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Sh0wbizChiz vs AmericanKiwi+33.4-33.4
+0.4-0.4
BillyDaButcha vs DarkPC-16.5+16.5
-0.1+0.1
retnuh101 vs a0ashle-8.9+8.9
-0.1+0.1
Vacar vs NeilFlix+0.4-0.4
-0.1+0.1

What If

Chances based on how well the Sh0wbizChiz finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-067.8%68328,673,801
60-10.9178218,682,527
Total:34.3%34551017,356,328
Games Above .500
Chance Will Make Playoffs