How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Chance in playoffs100.0*Average seed
Bogus Lump 106 Chupacabras 159 +24.5
+1.2
Duke 143 Skinny Bastards 111 +3.7
+0.3
Swillards 128 Cobbies Army 160 -3.2
-0.1
SUV 93 Pyledrivers 122 +0.9
+0.1
Tonto 91 Docinators 118 +0.9
+0.0
Big Daddy 98 HACK 164 -0.1
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Chupacabras 153 SUV 120 In
+1.4
Skinny Bastards 163 Big Daddy 93 -11.5
-0.1
Cobbies Army 67 HACK 77 +7.3
+0.1
Tonto 113 Duke 78 -4.8
-0.1
Bogus Lump 132 Swillards 128 -2.7
Pyledrivers 135 Docinators 98 +0.5
Games Above .500
Chance Will Make Playoffs