How are these numbers calculated?

Big Games

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

Week of 9/29100.0*Chance in playoffs100.0*Average seed
Atlanta II 1 Tampa Bay 1 -5.5
-0.4
Ottawa 0 Bethlehem 0 +2.1
+0.1
North Carolina 3 Richmond 2 -1.6
-0.1
Nashville 1 New York II 1 +0.5
Penn 2 Charlotte 2 +0.1
+0.1
Week of 10/5100.0*Chance in playoffs100.0*Average seed
Tampa Bay 1 Charlotte 2 Out
-1.0
Indy 1 Bethlehem 1 -1.1
-0.0
Richmond 0 Nashville 3 -1.0
-0.0
North Carolina 1 New York II 2 -0.1
-0.1
Penn 1 New York II 3 +0.1
Week of 10/13100.0*Chance in playoffs100.0*Average seed
Bethlehem 1 Tampa Bay 0 -0.5
Charlotte 1 North Carolina 3 +0.2
Points
Chance Will Make Playoffs