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
Chuck 125 Thiede 87 +12.4
+0.1
Marty 73 Nanna 85 +5.6
+0.1
Adam 122 Gruzs 97 -1.0
-0.1
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Thiede vs Nanna-37.4In
-0.4+0.4
Adam vs Marty-0.0+0.2

What If

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

100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345Count
72-0In11898,405,087
61-190.2%901023,957,197
50-2Out10015,576,216
Total:62.6%2613747,938,500
Games Above .500
Chance Will Make Playoffs