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 -14.5
-1.1
Duke 143 Skinny Bastards 111 +3.2
+0.2
SUV 93 Pyledrivers 122 +1.6
+0.1
Big Daddy 98 HACK 164 +1.6
+0.2
Tonto 91 Docinators 118 +1.0
Swillards 128 Cobbies Army 160 +0.1
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Chupacabras 153 SUV 120 -0.6
Skinny Bastards 163 Big Daddy 93 +0.5
Bogus Lump 132 Swillards 128 +0.1
Cobbies Army 67 HACK 77 -0.0
Games Above .500
Chance Will Make Playoffs