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
Eric Froehlich 0 Rich Shay 1 -21.5
-0.7
Tom Martell 1 David Williams 0 +2.4
Chris Pikula 0 Luis Scott-Vargas 1 +1.3
+0.1
Steve Menendian 0 Bob Maher 1 +0.4
+0.1
Randy Buehler 0 Josh Utter-Leyton 1 +0.1
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Eric Froehlich vs David Williams+19.9-31.7
+0.6-1.0
Tom Martell vs Josh Utter-Leyton-6.1+15.8
-0.1+0.3
Chris Pikula vs Bob Maher-3.9+10.1
-0.1+0.2
Rich Shay vs Luis Scott-Vargas-4.0+0.8
-0.2+0.0
Randy Buehler vs Steve Menendian+3.2-0.7
+0.1-0.0

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
62-095.4%115532756,677,376
51-154.901441414023,988,274
40-23.00322502510012,448,850
Total:46.2%0216283017700043,114,500
Games Above .500
Chance Will Make Playoffs