How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Marty 73 Nanna 85 +5.4
+0.2
Chip 91 Larry 114 +2.6
+0.1
Chuck 125 Thiede 87 +1.9
-0.1
Jesse 118 Stang 120 -1.2
-0.1
Adam 122 Gruzs 97 -0.4
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Thiede vs Nanna-32.5+32.5
-0.9+0.9
Chip vs Stang-13.1+7.1
-0.3+0.2
Jesse vs Chuck+7.2-9.8
+0.1-0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
72-096.0%15335747,701,447
61-154.51532616421,948,892
50-2Out5385714,268,161
Total:44.0%0173715202043,918,500
Games Above .500
Chance Will Make Playoffs