How are these numbers calculated?

Big Games

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

Week of 5/10100.0*Relegated100.0*Average seed
Energie Cottbus 2 Hamburger SV 0 -16.5
+0.6
Arminia Bielefeld 2 BVB 2 -6.8
+0.2
Hertha Berlin 1 Nürnberg 0 -4.9
+0.1
MSV Duisburg 2 Bayern München 3 -2.5
+0.1
Hansa Rostock 1 Leverkusen 2 -0.5
Week of 5/17None
Points
Chance Will Win Championship