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
Alcoholics 140 Fonzanoons 132 -7.6
-0.7
69ers 179 Juggernauts 174 +3.3
+0.1
Attack 139 Turdburglers 149 +1.6
+0.1
Devils 97 L-Riders 100 +0.8
-0.1
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Fonzanoons 109 L-Riders 128 -2.0
-1.0
69ers 130 Attack 94 +1.7
+0.1
Pooh-Stabbers 168 Juggernauts 163 +1.4
+0.1
Devils 96 Alcoholics 154 -1.3
-0.2
Turdburglers 131 Sharknado 183 +0.7
+0.0
Games Above .500
Chance Will Make Playoffs