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 -0.2
Werder Bremen 1 FC Köln 0 +0.1
Week of 5/8100.0*Average seed
Nürnberg 1 FC Köln 0 +0.3
VfL Borussia 1 Leverkusen 1 +0.1
Points
Chance Will Win Championship