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
Jake 142 Brenden 123 +29.6
+0.6
Swan 144 Eric 110 +12.8
+0.2
If winner is:HomeAway
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Mahoney vs EricIn-14.9
+0.1-0.3
Graham vs Jake-3.1In
-0.2+0.3
Tim vs Brenden+0.9-3.5
+0.1-0.3

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
72-0In438586,915,417
61-1In782235,712,633
50-290.8%3853935,812,158
Total:95.8%035834478,440,208
Games Above .500
Chance Will Make Playoffs