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
Alex 78.86 Mitch 66.34 -6.4
-0.9
Peter 119.92 Kyle 96.36 -1.3
-0.1
Stefan 106.64 Courtney 91.98 +0.3
-0.1
Caitlin 102.72 Domir 113.22 +0.2
Nick 100.94 Hirson 79.74 +0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Mitch 161.86 Domir 105.04 +0.8
+0.6
Courtney 94.06 Alex 93.2 +0.2
Peter 83.88 Nick 73.04 Out
Hirson 142.9 Stefan 101.32 -0.1
+0.2
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Courtney vs Mitch-0.5+0.5
Alex vs Hirson-0.6+0.4

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
71-0Out574334,714,353
60-1Out5444234,721,067
Total:Out284822169,435,420
Games Above .500
Chance Will Make Playoffs