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
Tex 109.24 Tammy 141.2 +26.3
+1.2
B 107.48 Meech 95.38 -4.7
-0.2
Sean 117.12 George 130.68 +2.2
+0.1
Jason 123.3 Rell 140.1 -2.2
-0.1
MO 111.94 Joe 113.84 -0.5
Jay 155.54 Drew 102.58 -0.4
-0.0
Marc 120.14 Nall 116.48 -0.2
-0.0
Week of 11/28100.0*Chance in playoffs100.0*Average seed
MO 134.58 Tammy 116.7 -32.5
-1.4
Jason 119.74 Drew 120.64 +9.6
+0.3
George 103.06 Tex 110.5 -7.5
-0.3
B 141.44 Rell 109.64 +4.5
Sean 168.28 Marc 161.56 -2.8
Joe 107.9 Jay 101.12 +1.9
Meech 122.76 Nall 137.94 -0.4
+0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Jay vs TammyOut+37.6
-0.7+1.0
Meech vs Jason+8.4-11.3
+0.3-0.4
Tex vs Marc+2.9-2.9
Sean vs Rell+2.7-2.7
Nall vs B-3.3+0.7
-0.1+0.0
Drew vs MO+0.1-0.0

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
71-065.6%02640241115,113,524
60-1Out27591420,232,288
Total:28.1%011172638835,345,812
Games Above .500
Chance Will Make Playoffs