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*Relegated100.0*Average seed
VfL Bochum 2 Eintracht 0 +6.6
-0.1
VfB Stuttgart 2 Energie Cottbus 0 +4.4
-0.2
BVB 6 Arminia Bielefeld 0 -0.9
+0.1
Leverkusen 5 VfL Borussia 0 -0.6
Werder Bremen 1 Karlsruher 3 +0.1
-0.2
Hannover 96 0 VfL Wolfsburg 5 +0.1
Week of 5/23100.0*Relegated100.0*Average seed
VfL Borussia 1 BVB 1 Yes
Energie Cottbus 3 Leverkusen 0 +0.3
+0.6
Arminia Bielefeld 2 Hannover 96 2 -0.1
+0.0
Karlsruher 4 Hertha Berlin 0 -0.4
Points
Chance Will Win Championship