How are these numbers calculated?

Big Games

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

Week of 10/14100.0*Chance in playoffs100.0*Average seed
Steve Menendian 0 Bob Maher 1 -1.5
-0.6
Eric Froehlich 0 Rich Shay 1 +0.1
Tom Martell 1 David Williams 0 -0.1
Chris Pikula 0 Luis Scott-Vargas 1 -0.1
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Randy Buehler vs Steve Menendian-6.7+1.6
-0.6+0.1
Chris Pikula vs Bob Maher-0.4+1.1
-0.0+0.1
Tom Martell vs Josh Utter-Leyton-0.4+1.0
-0.0+0.1
Eric Froehlich vs David Williams-0.5+0.7
Rich Shay vs Luis Scott-Vargas-0.3+0.1
+0.2-0.0

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
72-0In168421,671,337
61-199.8%166293018,327,200
50-278.15294421003,115,963
Total:98.4%97114520043,114,500
Games Above .500
Chance Will Make Playoffs