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
69ers 179 Juggernauts 174 -32.8
-1.2
Alcoholics 140 Fonzanoons 132 -6.0
Devils 97 L-Riders 100 +1.0
-0.1
Attack 139 Turdburglers 149 -0.7
+0.2
Week of 11/30100.0*Chance in playoffs100.0*Average seed
69ers 130 Attack 94 +14.2
+0.3
Pooh-Stabbers 168 Juggernauts 163 -13.8
-0.3
Devils 96 Alcoholics 154 -10.6
-0.3
Turdburglers 131 Sharknado 183 +2.1
+0.1
Fonzanoons 109 L-Riders 128 +0.7
+0.1
Games Above .500
Chance Will Make Playoffs