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*Chance wins title100.0*Average seed
Hertha Berlin 0 Schalke 0 -13.2
-0.4
Hannover 96 0 VfL Wolfsburg 5 -7.2
-0.2
Hoffenheim 2 Bayern München 2 +3.5
+0.1
VfB Stuttgart 2 Energie Cottbus 0 -0.4
-0.1
Werder Bremen 1 Karlsruher 3 -0.1
Hamburger SV 0 FC Köln 1 +0.1
Week of 5/23100.0*Chance wins title100.0*Average seed
Bayern München 2 VfB Stuttgart 1 No
-0.1
Karlsruher 4 Hertha Berlin 0 No
-0.6
VfL Wolfsburg 5 Werder Bremen 1 No
Points
Chance Will Win Championship