How are these numbers calculated?

Big Games

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

Week of 11/3100.0*Chance in playoffs100.0*Average seed
Larson 114.3 Illgen 130 +14.5
+0.5
Shroff 86.3 Petrella 87.6 -4.6
-0.1
Alter 102.6 Keating 100.9 +4.4
+0.2
Swikart 123.1 Cohen 80.8 +2.4
+0.1
Del Cueto 126.6 Brockett 94.7 +1.7
+0.1
Swords 149.9 Mendoza 88.5 +1.5
+0.1
If winner is:HomeAway
Week of 11/10100.0*Chance in playoffs100.0*Average seed
Illgen vs Alter+11.9-12.4
+0.5-0.5
Keating vs Swikart-5.1+5.2
-0.2+0.2
Mendoza vs Shroff-2.8+2.8
-0.1+0.1
Petrella vs Del Cueto-2.8+2.8
-0.1+0.1
Cohen vs Larson-0.7+0.7
Brockett vs Swords-0.6+0.5

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
94-0In9461,460,778
83-199.7%6432405,717,186
72-291.12044279008,425,450
61-349.01133444605,517,480
50-46.2006463991,360,898
Total:78.4%302920174122,481,792
Games Above .500
Chance Will Make Playoffs