How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
AndrewL 80.9 AndrewF 99.6 -8.9
-0.6
BenF 96.4 Mitch 101 +2.2
Ryan 105.9 Kyle 70.9 +1.9
+0.1
Derek 100.5 Manj 60.2 +0.6
John 96 BenG 53.9 -0.5
+0.1
Phil 70 Jaylen 74 -0.3
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Mitch 100.6 AndrewL 120.7 +12.4
+0.8
AndrewF 70.1 Ryan 92.1 +4.2
+0.2
Manj 113 John 59.5 +4.0
+0.2
BenG 80.4 Phil 73 -3.6
-0.2
Derek 123.1 BenF 67 +2.4
-0.1
Kyle 101.5 Jaylen 73.7 -1.0
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
AndrewL vs Derek+0.7-0.7
Jaylen vs BenG+0.2-0.2
Ryan vs Mitch+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In86149,003,940
70-1In50508,995,604
Total:In43322517,999,544
Games Above .500
Chance Will Make Playoffs