How are these numbers calculated?

Big Games

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

Week of 8/3100.0*Average seed
Los Angeles 1 Antigua 2 +0.1
Richmond 2 Antigua 0 -0.1
Charlotte 4 Antigua 0 -0.0
Week of 8/10100.0*Average seed
Los Angeles 1 Antigua 0 -0.1
Pittsburgh 0 Charlotte 3 +0.1
Week of 8/19None
Points
Chance Will Make Playoffs