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
Steve 99.14 Nick 116.44 -15.2
-1.5
John 154.1 Roger 134.58 -0.9
+0.2
Bobby 142.28 Chuck 132.94 -0.3
-0.0
Chris 127.42 Nana 180.34 -0.3
-0.1
Jordan 108.14 Ryan 119.84 +0.3
-0.1
Andy 94.74 Evan 82.96 -0.1
-0.0
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Evan 143.84 Steve 75.88 -7.5
-0.6
Nana 112.14 Roger 81.58 -0.2
Nick 105 John 141.3 +0.1
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Steve 143.7 Jordan 119.8 +26.0
+1.3
Bobby 125.44 Nana 115.06 -5.7
-0.2
Roger 71.16 Nick 131.04 -1.8
-0.1
Chuck 120.9 Andy 138.94 -1.6
-0.1
John 122.74 Evan 127.94 +0.7
Chris 102.76 Ryan 137 -0.3
If winner is:HomeAway
Steve vs Chuck+21.2Out
+0.7-1.9
Jordan vs John+8.6-6.4
+0.3-0.2
Nana vs Nick+4.6-6.3
+0.2-0.3
Bobby vs Ryan-5.6+4.1
-0.3+0.2
Andy vs Chris-1.9+6.6
-0.1+0.4
Evan vs Roger+3.5-3.5
+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-075.1%316292818748,874,193
60-1Out125528519,274,807
Total:53.8%211212016208268,149,000
Games Above .500
Chance Will Make Playoffs