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
Justin 72.22 Bhairav 74.1 -30.8
-1.9
Adam 93.22 Jack 58.24 -3.4
-0.2
Jesse 78.46 Jeffrey 69.18 +2.0
+0.1
Tony 109.48 Simon 52.34 +1.6
+0.0
Anand 76.6 Bryan 32.7 +0.8
+0.1
Tom 100.32 Ziyi 45 -0.4
David 76.82 Jon 66.28 -0.2
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Jack 63.56 Justin 110.76 +32.2
+2.0
Simon 68.28 Bhairav 97 +5.5
+0.3
Ziyi 100.82 Tony 83.04 -5.2
-0.2
Anand 99.1 David 97.14 +3.6
Jon 73.62 Adam 58.82 +3.5
+0.1
Jeffrey 112.96 Tom 86.92 -1.7
-0.1
Bryan 67.9 Jesse 59.88 -0.4
-0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Justin vs Jon+36.2-36.2
+1.8-1.8
Tom vs Bryan-5.6+7.5
-0.2+0.3
Tony vs Jeffrey+5.1-6.8
Jesse vs David+3.5-6.4
+0.2-0.3
Ziyi vs Simon-1.3+1.8
-0.2+0.2
Adam vs Anand-1.2+1.2
-0.1+0.1

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
71-099.7%143831133030,855,751
60-127.317193028132030,861,269
Total:63.5%719161011151461061,717,020
Games Above .500
Chance Will Make Playoffs