How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Chance in playoffs100.0*Average seed
Peter 119.92 Kyle 96.36 +7.8
+0.5
Alex 78.86 Mitch 66.34 -3.0
Stefan 106.64 Courtney 91.98 +1.9
+0.1
Caitlin 102.72 Domir 113.22 +0.5
+0.0
Nick 100.94 Hirson 79.74 -0.3
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Peter 83.88 Nick 73.04 +40.8
+1.3
Courtney 94.06 Alex 93.2 +2.3
+0.1
Mitch 161.86 Domir 105.04 +1.5
-0.1
Kyle 102.72 Caitlin 139.4 -1.3
-0.0
Hirson 142.9 Stefan 101.32 -0.2
-0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Peter vs StefanIn-27.3
+0.6-1.1
Caitlin vs NickIn-20.9
-0.1+0.1
Alex vs Hirson+0.1-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
81-0In34343243,893,423
70-156.8%57249925,541,997
Total:84.1%21214193369,435,420
Games Above .500
Chance Will Make Playoffs