How are these numbers calculated?

Big Games

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

Week of 10/16100.0*Chance in playoffs100.0*Average seed
Chattanooga 1 Toronto II 2 Out
-0.1
Tucson 3 South Georgia 1 Out
+0.1
Richmond 3 Madison 2 +0.1
Fort Lauderdale 0 North Texas 1 -0.4
Toronto II 1 Fort Lauderdale 2 +0.4
Omaha 1 Madison 2 -0.1
Omaha 4 North Carolina 1 +0.1
Week of 10/23100.0*Chance in playoffs100.0*Average seed
North Carolina 1 South Georgia 0 +0.4
Week of 10/30None
Points
Chance Will Make Playoffs