How are these numbers calculated?

Big Games

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

Week of 9/8100.0*Chance in playoffs100.0*Average seed
Minnesota 4 Puerto Rico 0 Out
Minnesota 1 Edmonton 1 -1.8
+0.0
Tampa Bay 1 Atlanta 1 -0.0
Edmonton 2 Carolina 2 -0.0
Week of 9/15100.0*Chance in playoffs100.0*Average seed
Atlanta 3 San Antonio 1 -0.2
Edmonton 0 Tampa Bay 3 -0.2
Atlanta 1 Ft. Lauderdale 0 -0.2
Week of 9/22None
Points
Chance Will Make Playoffs