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
Tom Martell 1 David Williams 0 +19.0
+1.0
Chris Pikula 0 Luis Scott-Vargas 1 +3.1
+0.1
Eric Froehlich 0 Rich Shay 1 +2.9
Steve Menendian 0 Bob Maher 1 +1.2
Randy Buehler 0 Josh Utter-Leyton 1 +0.8
+0.1
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Tom Martell vs Josh Utter-Leyton+22.2-22.2
+0.8-0.8
Chris Pikula vs Bob Maher-7.0+7.0
-0.2+0.2
Eric Froehlich vs David Williams-3.8+3.8
-0.1+0.1
Rich Shay vs Luis Scott-Vargas-2.7+2.7
-0.1+0.1
Randy Buehler vs Steve Menendian+1.3-1.3
+0.1-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
62-099.1%75329913,394,778
51-164.94233829606,778,279
40-26.0062437294003,394,443
Total:58.8%21519232112710013,567,500
Games Above .500
Chance Will Make Playoffs