How are these numbers calculated?

Big Games

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

Week of 3/10100.0*Average seed
Austria Wien 1 Rheindorf Altach 3 +0.7
Admira 3 St. Pölten 2 -0.2
LASK 2 Wacker Innsbruck 0 +0.1
Week of 3/17100.0*Average seed
Rheindorf Altach 1 LASK 2 -0.2
Wacker Innsbruck 0 Salzburg 2 +0.1
Wolfsberger AC 2 Admira 2 +0.1
Points
Chance Will Make Playoffs