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*Relegated100.0*Average seed
Hertha Berlin 0 Schalke 1 +0.8
-0.1
Nürnberg 2 BVB 3 -0.3
VfL Bochum 0 VfB Stuttgart 2 -0.2
SC Freiburg 1 VfL Wolfsburg 0 Yes
Leverkusen 3 Hannover 96 0 -0.1
+0.0
Week of 5/8None
Points
Chance Will Win Championship