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 -10.3
-1.4
Wil 42 Jerry 44 +0.5
+0.1
Tim 72 Ed 17 +0.1
-0.1
Jess 48 Lori 51 -0.1
Greg 71 Rachel 46 -0.1
Marianna 50 Tyler 48 +0.1
-0.1
Week of 11/21100.0*Chance in playoffs100.0*Average seed
AM 81 Tyler 54 +18.2
+1.5
Greg 77 Grace 41 -1.9
Jess 56 Jerry 49 -1.2
-0.1
Wil 61 Tom 49 -0.6
Marianna 76 Lori 62 -0.3
-0.1
Rachel 57 Ed 83 -0.2
If winner is:HomeAway
Week of 11/28100.0*Chance in playoffs100.0*Average seed
AM vs Lori+1.3-1.3
Rachel vs Grace+0.3-0.3
Greg vs Tyler-0.3+0.3
Marianna vs Jerry-0.2+0.2
Jess vs Tom+0.1-0.1
Wil vs Tim+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
81-0-0In434114210,926,821
70-1-0In1517302915310,931,903
Total:In22231616147221,858,724
Games Above .500
Chance Will Make Playoffs