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 -13.9
-0.8
Sh0wbizChiz 120.64 Vacar 83.82 +2.9
+0.1
OprahsTit 141.86 DarkPC 87.8 -0.6
-0.0
a0ashle 93.12 BillyDaButcha 97.38 -0.2
-0.1
Week of 11/23100.0*Chance in playoffs100.0*Average seed
BillyDaButcha 106.56 retnuh101 130.58 +20.8
+1.2
asmitty 106.92 Vacar 104.02 +5.8
+0.2
jeff_underscore 109.38 Sh0wbizChiz 119.96 -2.3
-0.1
DarkPC 61.7 imjoshb 123.32 -1.0
-0.1
a0ashle 110.44 OprahsTit 140.58 -0.5
-0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Sh0wbizChiz vs AmericanKiwi-9.3In
-0.1+0.0
retnuh101 vs a0ashleIn-6.0
+0.3-0.6
BillyDaButcha vs DarkPC-0.7In
-0.1+0.3

What If

Chances based on how well the retnuh101 finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In10038,251,794
70-191.5%5932915,746,838
Total:97.5%889253,998,632
Games Above .500
Chance Will Make Playoffs