How are these numbers calculated?

Big Games

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

Week of 4/20100.0*Average seed
Linz 1 Sturm Graz 2 +0.5
Wacker 0 Mattersburg 5 -0.1
Week of 4/26100.0*Average seed
Sturm Graz 3 Austria Kärnten 1 +0.8
Mattersburg 1 Linz 0 +0.4
Austria Wien 2 Wacker 1 -0.2
Points
Chance Will Win Championship