How are these numbers calculated?

Big Games

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

Week of 11/14100.0*Chance in playoffs100.0*Average seed
AM 59 Grace 65 -2.6
-1.0
Jess 48 Lori 51 -0.2
Greg 71 Rachel 46 -0.1
Wil 42 Jerry 44 +0.1
+0.0
Tim 72 Ed 17 +0.1
-0.1
Marianna 50 Tyler 48 -0.1
-0.0
Week of 11/21100.0*Chance in playoffs100.0*Average seed
AM 81 Tyler 54 +6.2
+0.7
Greg 77 Grace 41 -0.8
Wil 61 Tom 49 -0.8
+0.1
Jess 56 Jerry 49 -0.7
Marianna 76 Lori 62 -0.2
Rachel 57 Ed 83 -0.2
If winner is:HomeAway
Week of 11/28100.0*Chance in playoffs100.0*Average seed
AM vs Lori+1.0-1.7
Marianna vs Jerry-0.4+0.1
Rachel vs Grace+0.3-0.1
Wil vs Tim+0.2-0.2
Greg vs Tyler-0.1+0.3
Jess vs Tom+0.1-0.1

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234567891011121314Count
81-0-0In424115239,609,415
70-1-0In0315323214222,107,605
Total:In27271513125161,717,020
Games Above .500
Chance Will Make Playoffs