How are these numbers calculated?

Big Games

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

Week of 9/9100.0*Average seed
Rochester 1 New York 1 -0.2
Charleston 2 Bethlehem 1 -0.2
Louisville 2 Richmond 0 +0.1
Charlotte 4 Pittsburgh 0 -0.1
Wilmington 0 Cincinnati 2 -0.1
Richmond 0 Charlotte 0 +0.0
Week of 9/17100.0*Average seed
Charlotte 0 Rochester 1 +0.6
Richmond 1 Charleston 2 -0.0
Week of 9/24100.0*Average seed
Rochester 1 Toronto 0 +0.8
Charleston 1 New York 2 +0.3
Louisville 1 Charlotte 1 +0.1
Wilmington 2 Richmond 0 +0.1
Points
Chance Will Make Playoffs