How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Average seed
Nashville 2 Louisville 1 -0.2
North Carolina 2 New York II 0 +0.1
Indy 3 Memphis 0 -0.1
Pittsburgh 1 Atlanta II 1 -0.0
Week of 10/11100.0*Average seed
Saint Louis 0 Pittsburgh 1 +0.5
Nashville 2 North Carolina 0 -0.2
Tampa Bay 1 Indy 1 +0.1
Week of 10/18100.0*Average seed
Birmingham 0 Pittsburgh 1 +0.6
Nashville 3 Atlanta II 0 -0.3
Points
Chance Will Make Playoffs