How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/10100.0*Chance in playoffs100.0*Average seed
Pollard 117 Henley 144 +10.9
+0.2
Kelso 164 Drennon 198 -8.7
-0.3
Smith 132 Johanson 149 -7.5
-0.2
Crouch 149 Best 108 +1.3
+0.0
Tipps 139 Taylor 128 -0.4
-0.1
Week of 11/17100.0*Chance in playoffs100.0*Average seed
Smith 153 Crouch 118 +22.3
+1.1
Drennon 132 Henley 140 +7.6
Best 113 Pollard 138 -0.2
-0.1
Johanson 119 Tipps 83 +0.2
+0.0
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Kelso 152 Pollard 166 -20.8
-0.2
Best 136 Smith 150 +7.4
+0.1
Johanson 176 Drennon 118 +1.6
+0.0
Games Above .500
Chance Will Make Playoffs