How are these numbers calculated?

Big Games

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

Week of 4/23100.0*Average seed
Hoffenheim 5 Hamburger SV 1 -0.4
VfL Bochum 0 VfB Stuttgart 2 -0.2
SC Freiburg 1 VfL Wolfsburg 0 +0.1
Mainz 3 Eintracht 3 +0.1
Nürnberg 2 BVB 3 -0.0
Werder Bremen 1 FC Köln 0 -0.0
Week of 5/8100.0*Average seed
Hoffenheim 1 VfB Stuttgart 1 -0.1
Werder Bremen 1 Hamburger SV 1 -0.1
Points
Chance Will Win Championship