How are these numbers calculated?

Big Games

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

Week of 5/16100.0*Average seed
Hoffenheim 2 Bayern München 2 +0.1
Leverkusen 5 VfL Borussia 0 -0.1
Werder Bremen 1 Karlsruher 3 +0.1
Week of 5/23100.0*Average seed
Schalke 2 Hoffenheim 3 -0.9
Energie Cottbus 3 Leverkusen 0 +0.3
Points
Chance Will Win Championship