How are these numbers calculated?

Big Games

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

Friday100.0*Average seed
Cleveland 3 Manitoba 1 -2.5
Rockford 4 Chicago 6 -0.4
Saturday100.0*Average seed
Grand Rapids 6 Cleveland 4 -0.4
Syracuse 2 Rochester 4 -0.3
Sunday100.0*Average seed
Chicago 1 Manitoba 3 +0.5
Points
Chance Will Make Playoffs