How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Chance in playoffs100.0*Average seed
John 154.1 Roger 134.58 +17.0
+1.3
Bobby 142.28 Chuck 132.94 -0.8
Steve 99.14 Nick 116.44 -0.3
Andy 94.74 Evan 82.96 -0.2
Chris 127.42 Nana 180.34 +0.2
Jordan 108.14 Ryan 119.84 +0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Nick 105 John 141.3 +13.6
+1.1
Evan 143.84 Steve 75.88 +0.3
Nana 112.14 Roger 81.58 -0.2
Week of 11/27100.0*Chance in playoffs100.0*Average seed
John 122.74 Evan 127.94 -23.1
-1.4
Chuck 120.9 Andy 138.94 -2.5
-0.2
Bobby 125.44 Nana 115.06 -2.4
-0.1
Chris 102.76 Ryan 137 -1.0
-0.2
Roger 71.16 Nick 131.04 -0.6
Steve 143.7 Jordan 119.8 +0.2
If winner is:HomeAway
Jordan vs JohnOut+46.2
-1.6+1.6
Steve vs Chuck-2.1+2.1
-0.3+0.3
Nana vs Nick+2.0-2.0
+0.2-0.2
Andy vs Chris-2.0+2.0
-0.2+0.2
Bobby vs Ryan-1.9+1.9
-0.2+0.2
Evan vs Roger+1.4-1.4

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-092.4%92835206110,932,002
60-1Out234625610,926,742
Total:46.2%4141810152413321,858,744
Games Above .500
Chance Will Make Playoffs