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 +6.8
+0.9
Derek 100.5 Manj 60.2 -3.0
-0.1
BenF 96.4 Mitch 101 +1.1
+0.1
Phil 70 Jaylen 74 -0.3
-0.1
Ryan 105.9 Kyle 70.9 -0.2
AndrewL 80.9 AndrewF 99.6 -0.3
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Manj 113 John 59.5 -9.2
-0.4
Mitch 100.6 AndrewL 120.7 -4.6
-0.1
Derek 123.1 BenF 67 -1.3
+0.0
AndrewF 70.1 Ryan 92.1 +1.1
+0.1
BenG 80.4 Phil 73 -0.8
-0.0
Kyle 101.5 Jaylen 73.7 -0.4
+0.1
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
John vs BenF+1.2-1.8
AndrewF vs Kyle-0.6+0.1
Jaylen vs BenG-0.5+0.1
Ryan vs Mitch-0.3+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-0Out70281136,507,936
50-1Out633723,922,664
Total:Out42171261560,430,600
Games Above .500
Chance Will Make Playoffs