How are these numbers calculated?

Big Games

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

Week of 10/27100.0*Chance in playoffs100.0*Average seed
Jaylen 73.9 Mitch 80.6 +2.1
+0.4
Ryan 92.1 Manj 94.8 +0.3
Phil 66.2 Derek 95.3 -0.3
Kyle 136.2 John 97.4 -0.1
AndrewL 93.1 BenF 76 -0.1
If winner is:HomeAway
Week of 11/3100.0*Chance in playoffs100.0*Average seed
Mitch vs BenGIn-0.3
+0.3-0.3
Derek vs Jaylen-0.1+0.1
Manj vs AndrewF+0.1-0.1
-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
125-0In100282,911
114-1In9911,405,220
103-2In881202,809,453
92-3In52425002,809,485
81-4100.0%93735164001,404,615
70-590.0018253323910283,052
Total:99.7%642373210008,994,736
Games Above .500
Chance Will Make Playoffs