How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Chance in playoffs100.0*Average seed
Jay 155.54 Drew 102.58 +10.4
+1.2
Sean 117.12 George 130.68 +1.5
B 107.48 Meech 95.38 -1.3
Tex 109.24 Tammy 141.2 -0.9
+0.1
Marc 120.14 Nall 116.48 -0.8
-0.2
MO 111.94 Joe 113.84 +0.4
-0.1
Jason 123.3 Rell 140.1 +0.1
Week of 11/28100.0*Chance in playoffs100.0*Average seed
Joe 107.9 Jay 101.12 -1.6
-1.4
Jason 119.74 Drew 120.64 +0.7
Meech 122.76 Nall 137.94 +0.6
+0.2
George 103.06 Tex 110.5 -0.6
Sean 168.28 Marc 161.56 -0.4
+0.2
B 141.44 Rell 109.64 -0.3
MO 134.58 Tammy 116.7 +0.1
+0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Sean vs Rell-7.7In
-0.2+0.2
Jay vs TammyIn-7.7
+1.3-1.3
Meech vs Jason-5.8+5.8
-0.4+0.4
Nall vs B+5.8-5.8
+0.4-0.4
George vs Joe-0.1+0.1

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
81-0In829371975,781,994
70-184.6%62227217155,785,546
Total:92.3%415222117113811,567,540
Games Above .500
Chance Will Make Playoffs