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
Nick 100.94 Hirson 79.74 +19.9
+0.9
Peter 119.92 Kyle 96.36 -4.3
-0.1
Caitlin 102.72 Domir 113.22 +1.3
+0.1
Stefan 106.64 Courtney 91.98 +1.0
Alex 78.86 Mitch 66.34 -0.9
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Peter 83.88 Nick 73.04 -23.8
-0.8
Courtney 94.06 Alex 93.2 +6.1
+0.2
Hirson 142.9 Stefan 101.32 -4.0
-0.1
Kyle 102.72 Caitlin 139.4 -3.1
-0.1
Mitch 161.86 Domir 105.04 +0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Alex vs Hirson+27.8-21.3
+0.3-0.2
Caitlin vs Nick-20.6+27.0
-0.4+0.6
Courtney vs Mitch+6.1-6.1
+0.1-0.1
Peter vs Stefan-3.5+6.0
-0.2+0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
81-064.2%631273629,443,971
70-116.61775838,705,049
Total:37.2%3132158568,149,020
Games Above .500
Chance Will Make Playoffs