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
Devils 97 L-Riders 100 +17.7
+0.8
Alcoholics 140 Fonzanoons 132 -4.0
69ers 179 Juggernauts 174 +3.6
+0.2
Attack 139 Turdburglers 149 +0.9
+0.2
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Fonzanoons 109 L-Riders 128 +0.6
Devils 96 Alcoholics 154 -0.1
Games Above .500
Chance Will Make Playoffs