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
Bjorn Identity 87.92 TightyWhiteys 128.3 -25.0
-1.3
Favre Waffle Co 81.3 CroMartie McFly 105.22 +6.2
+0.1
Baratheons Bast 82.28 You Down With J 146.86 -6.1
-0.2
E for Elite 80.82 passwordistaco 75.86 +5.1
+0.2
BieberHole69 138.8 Fuhgeddaboudit 71.68 -4.6
Week of 11/28100.0*Chance in playoffs100.0*Average seed
Bjorn Identity 145.2 Fuhgeddaboudit 83.34 +22.2
+1.0
Favre Waffle Co 142.22 Baratheons Bast 64.8 Out
-0.2
CroMartie McFly 102.24 TightyWhiteys 156.92 -1.4
BieberHole69 137.98 passwordistaco 89.62 +0.4
+0.2
Games Above .500
Chance Will Make Playoffs