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
Jess 48 Lori 51 +20.4
+1.7
Wil 42 Jerry 44 +2.5
+0.1
Marianna 50 Tyler 48 -1.8
Greg 71 Rachel 46 -0.9
Tim 72 Ed 17 +0.4
+0.1
AM 59 Grace 65 +0.3
Drew 47 Tom 48 -0.1
Week of 11/21100.0*Chance in playoffs100.0*Average seed
Marianna 76 Lori 62 -25.0
-1.8
Greg 77 Grace 41 -4.0
-0.1
AM 81 Tyler 54 -3.6
-0.1
Jess 56 Jerry 49 -2.9
-0.1
Wil 61 Tom 49 -1.2
Rachel 57 Ed 83 -0.1
If winner is:HomeAway
Week of 11/28100.0*Chance in playoffs100.0*Average seed
AM vs LoriOut+17.7
-1.3+1.3
Wil vs Tim-10.1+10.2
-0.2+0.2
Drew vs Ed-9.8+9.8
Jess vs Tom+8.0-8.0
Rachel vs Grace-0.1+0.1

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234567891011121314Count
61-0-035.4%7284023110,931,903
50-1-0Out1237401210,926,821
Total:17.7%41420181920621,858,724
Games Above .500
Chance Will Make Playoffs