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
Sha 65 BShan 109 +24.9
+0.9
Doud 74 Pat Doud 115 +4.4
+0.1
JMatz 79 Brah 95 -3.3
-0.1
DShan 91 Pulver 101 +1.5
+0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
BShan 118 Lotze 91 +15.8
+0.7
Doud 131 James 135 +10.4
+0.2
Sha 127 RK 122 -5.2
-0.2
Brah 104 Phil 86 -1.1
-0.2
JMatz 152 Karl 94 +0.7
DShan 128 Sasaki 115 +0.3
Pat Doud 95 Pulver 111 -0.1
+0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
BShan vs Karl+0.8-0.8
DShan vs Brah+0.2-0.2

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234567Count
81-0-0In2528478,997,533
70-1-0In127729,002,011
Total:In1314373617,999,544
Games Above .500
Chance Will Make Playoffs