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
Tonto 91 Docinators 118 -10.4
-0.6
Duke 143 Skinny Bastards 111 +6.0
+0.1
SUV 93 Pyledrivers 122 +5.2
+0.2
Swillards 128 Cobbies Army 160 -3.8
-0.1
Bogus Lump 106 Chupacabras 159 -2.1
-0.1
Big Daddy 98 HACK 164 +0.2
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Tonto 113 Duke 78 +23.7
+0.6
Cobbies Army 67 HACK 77 +11.6
+0.2
Chupacabras 153 SUV 120 -8.7
-0.3
Skinny Bastards 163 Big Daddy 93 -0.1
Bogus Lump 132 Swillards 128 -0.0
Games Above .500
Chance Will Make Playoffs