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
Jesse 78.46 Jeffrey 69.18 -21.5
-1.5
Justin 72.22 Bhairav 74.1 +2.0
+0.1
Adam 93.22 Jack 58.24 -1.5
-0.1
Tony 109.48 Simon 52.34 +1.0
Anand 76.6 Bryan 32.7 +0.8
+0.1
Tom 100.32 Ziyi 45 -0.4
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Jeffrey 112.96 Tom 86.92 +27.9
+1.8
Jack 63.56 Justin 110.76 -3.2
-0.2
Simon 68.28 Bhairav 97 +3.2
+0.1
Ziyi 100.82 Tony 83.04 -3.0
-0.1
Anand 99.1 David 97.14 +1.9
Bryan 67.9 Jesse 59.88 -0.5
-0.1
Jon 73.62 Adam 58.82 +0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Tony vs Jeffrey-39.7In
-2.2+2.2
Tom vs Bryan-4.7+4.7
-0.2+0.2
Jesse vs David+3.0-3.0
+0.3-0.3
Adam vs Anand-2.0+2.0
-0.1+0.1
Justin vs Jon+1.8-1.8
Ziyi vs Simon-0.1+0.1
-0.1+0.1

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
71-0In23382710210,288,007
60-120.6%15152327218110,284,333
Total:60.3%111914881214104020,572,340
Games Above .500
Chance Will Make Playoffs