How are these numbers calculated?

Big Games

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

Week of 4/30100.0*Erste Liga100.0*Average seed
Grödig 2 Rapid Wien 0 -5.3
+0.1
Wolfsberger 2 Mattersburg 0 -0.4
Sturm Graz 0 Ried 0 +0.4
Admira 2 Altach 1 -0.2
Week of 5/8100.0*Erste Liga100.0*Average seed
Ried 2 Grödig 0 +7.6
-0.1
Grödig 1 Salzburg 2 Yes
-0.1
Sturm Graz 1 Mattersburg 1 +4.0
Mattersburg 0 Rapid Wien 2 -2.8
+0.0
Rapid Wien 1 Altach 1 +0.4
Week of 5/15None
Points
Chance Will Win Championship