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 -17.6
-1.1
SUV 93 Pyledrivers 122 +3.2
+0.1
Duke 143 Skinny Bastards 111 +3.1
Swillards 128 Cobbies Army 160 -3.0
-0.1
Bogus Lump 106 Chupacabras 159 -1.8
-0.1
Big Daddy 98 HACK 164 +0.7
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Tonto 113 Duke 78 +37.5
+1.0
Cobbies Army 67 HACK 77 +12.5
+0.3
Chupacabras 153 SUV 120 -12.5
Skinny Bastards 163 Big Daddy 93 -0.2
Games Above .500
Chance Will Make Playoffs