How are these numbers calculated?

Big Games

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

Week of 11/16100.0*Chance in playoffs100.0*Average seed
David 76.82 Jon 66.28 -23.2
-1.6
Justin 72.22 Bhairav 74.1 +2.3
+0.1
Jesse 78.46 Jeffrey 69.18 +1.7
+0.1
Anand 76.6 Bryan 32.7 +1.0
+0.1
Adam 93.22 Jack 58.24 -0.9
-0.1
Tony 109.48 Simon 52.34 +0.7
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Jon 73.62 Adam 58.82 +24.5
+1.7
Simon 68.28 Bhairav 97 +0.7
+0.1
Ziyi 100.82 Tony 83.04 -0.6
-0.1
Jack 63.56 Justin 110.76 -0.4
-0.1
Jeffrey 112.96 Tom 86.92 -0.4
-0.1
Anand 99.1 David 97.14 +0.4
-0.1
Bryan 67.9 Jesse 59.88 -0.1
-0.2
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Justin vs Jon-47.8+47.7
-2.5+2.5
Tony vs Jeffrey+2.2-2.2
+0.2-0.2
Jesse vs David+2.2-2.2
+0.3-0.3
Tom vs Bryan-2.2+2.2
Ziyi vs Simon-2.2+2.2

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
71-095.6%09293721410,290,475
60-10.0000230472010,281,865
Total:47.8%041418102115241020,572,340
Games Above .500
Chance Will Make Playoffs