How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Chance in playoffs100.0*Average seed
JMatz 79 Brah 95 +23.1
+1.0
Sha 65 BShan 109 -4.6
-0.1
DShan 91 Pulver 101 +2.7
+0.1
Doud 74 Pat Doud 115 -0.7
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Brah 104 Phil 86 +18.0
+0.9
BShan 118 Lotze 91 -4.8
-0.2
DShan 128 Sasaki 115 -4.4
-0.1
Doud 131 James 135 +4.4
+0.2
Pat Doud 95 Pulver 111 +0.8
+0.2
JMatz 152 Karl 94 +0.7
Sha 127 RK 122 -0.6
-0.2
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
DShan vs Brah-0.7+0.7
BShan vs Karl-0.3+0.3

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234567Count
81-0-0In653418,998,412
70-1-0In4034269,001,132
Total:In3337181317,999,544
Games Above .500
Chance Will Make Playoffs