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
Jordan 108.14 Ryan 119.84 -18.1
-1.3
Bobby 142.28 Chuck 132.94 -1.1
John 154.1 Roger 134.58 -1.0
Chris 127.42 Nana 180.34 -0.3
Andy 94.74 Evan 82.96 -0.3
Steve 99.14 Nick 116.44 -0.2
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Andy 104.98 Jordan 102.08 -13.4
-1.1
Evan 143.84 Steve 75.88 +0.5
Nana 112.14 Roger 81.58 -0.2
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Steve 143.7 Jordan 119.8 -21.8
-1.4
Chuck 120.9 Andy 138.94 -2.5
-0.1
Bobby 125.44 Nana 115.06 -2.4
-0.1
John 122.74 Evan 127.94 +0.8
-0.1
Roger 71.16 Nick 131.04 -0.6
Chris 102.76 Ryan 137 -0.6
If winner is:HomeAway
Jordan vs John+0.7-0.7
Steve vs Chuck-0.1+0.1
Evan vs Roger-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-0Out1032401810,926,742
50-1Out10010,932,002
Total:Out516205921,858,744
Games Above .500
Chance Will Make Playoffs