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 -16.6
-1.2
Big Daddy 98 HACK 164 +3.0
+0.1
Duke 143 Skinny Bastards 111 +2.8
+0.2
Tonto 91 Docinators 118 +1.9
SUV 93 Pyledrivers 122 +1.4
+0.1
Swillards 128 Cobbies Army 160 +1.4
+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 +0.4
Bogus Lump 132 Swillards 128 +0.2
Cobbies Army 67 HACK 77 -0.1
Games Above .500
Chance Will Make Playoffs