How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Friday100.0*Average seed
Grand Rapids 2 Charlotte 1 +0.5
Rockford 4 Chicago 3 -0.3
Rochester 2 Utica 3 -0.2
San Antonio 2 Texas 3 +0.1
Saturday100.0*Average seed
Grand Rapids 3 Charlotte 7 -0.9
Rockford 1 Toronto 3 +0.4
Adirondack 2 Utica 3 -0.3
SundayNone
Points
Chance Will Make Playoffs