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 +33.7
+1.6
John 154.1 Roger 134.58 -2.2
-0.2
Jordan 108.14 Ryan 119.84 +1.5
+0.1
Bobby 142.28 Chuck 132.94 -1.4
-0.0
Chris 127.42 Nana 180.34 -1.0
Andy 94.74 Evan 82.96 -0.8
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Nick 105 John 141.3 -8.1
-0.6
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
Roger 71.16 Nick 131.04 +29.8
+1.4
Bobby 125.44 Nana 115.06 -7.0
-0.2
Steve 143.7 Jordan 119.8 -2.3
Chuck 120.9 Andy 138.94 -1.9
-0.1
John 122.74 Evan 127.94 +1.7
+0.1
Chris 102.76 Ryan 137 -0.4
-0.0
If winner is:HomeAway
Nana vs Nick-18.5In
-1.3+1.8
Jordan vs John+10.4-7.7
+0.3-0.2
Steve vs Chuck-4.9+12.5
-0.1+0.3
Evan vs Roger+3.9-3.9
+0.1-0.1
Andy vs Chris-1.6+5.3
-0.1+0.4
Bobby vs Ryan-3.7+2.7
-0.2+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In7243228928,926,850
70-156.4%181928291439,222,150
Total:74.9%3101417151617868,149,000
Games Above .500
Chance Will Make Playoffs