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
B 107.48 Meech 95.38 +19.0
+1.1
Sean 117.12 George 130.68 +3.5
+0.2
Marc 120.14 Nall 116.48 -1.4
-0.1
Jay 155.54 Drew 102.58 -1.2
-0.1
Jason 123.3 Rell 140.1 -1.2
Tex 109.24 Tammy 141.2 -1.2
-0.1
MO 111.94 Joe 113.84 +0.1
Week of 11/28100.0*Chance in playoffs100.0*Average seed
B 141.44 Rell 109.64 +27.5
+1.3
George 103.06 Tex 110.5 -4.3
-0.2
MO 134.58 Tammy 116.7 +4.1
+0.2
Jason 119.74 Drew 120.64 +3.8
+0.2
Sean 168.28 Marc 161.56 -2.1
Joe 107.9 Jay 101.12 +0.2
Meech 122.76 Nall 137.94 -0.1
+0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Nall vs B-0.9+0.9
Jay vs Tammy-0.3+0.3
Meech vs Jason-0.2+0.2
Tex vs Marc+0.1-0.1

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
81-0In28363065,782,401
70-1In52240335,785,139
Total:In142126231711,567,540
Games Above .500
Chance Will Make Playoffs