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 +0.3
-0.1
AmericanKiwi 150.22 jeff_underscore 118.64 -0.3
-0.1
retnuh101 107.98 imjoshb 108.22 -0.2
a0ashle 93.12 BillyDaButcha 97.38 +0.1
OprahsTit 141.86 DarkPC 87.8 +0.0
NeilFlix 125.5 asmitty 120 +0.0
If winner is:HomeAway
Week of 11/23100.0*Chance in playoffs100.0*Average seed
jeff_underscore vs Sh0wbizChiz+0.7-0.3
a0ashle vs OprahsTit-0.3+0.1
asmitty vs Vacar+0.1-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
52-0Out19592027,389,542
41-1Out344422021,522,745
30-2Out96414,151,937
Total:Out310202342143,064,224
Games Above .500
Chance Will Make Playoffs