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
John 96 BenG 53.9 -1.9
-0.8
Derek 100.5 Manj 60.2 -0.7
-0.1
Ryan 105.9 Kyle 70.9 +0.4
BenF 96.4 Mitch 101 +0.2
-0.1
AndrewL 80.9 AndrewF 99.6 +0.4
Week of 11/24100.0*Chance in playoffs100.0*Average seed
BenG 80.4 Phil 73 +3.8
+0.3
Manj 113 John 59.5 +0.7
+0.0
Kyle 101.5 Jaylen 73.7 +0.3
+0.0
Derek 123.1 BenF 67 +0.2
-0.1
Mitch 100.6 AndrewL 120.7 -0.2
-0.1
AndrewF 70.1 Ryan 92.1 +0.1
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Jaylen vs BenG-1.2+0.3
Ryan vs Mitch+0.7-0.4
AndrewL vs Derek+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In19186347,009,786
70-1In10013,420,814
Total:In1514492260,430,600
Games Above .500
Chance Will Make Playoffs