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
Hannover 96 0 VfL Wolfsburg 5 -4.9
-0.1
VfB Stuttgart 2 Energie Cottbus 0 +2.9
+0.2
Hertha Berlin 0 Schalke 0 +2.0
+0.1
Hoffenheim 2 Bayern München 2 -0.6
-0.1
VfL Bochum 2 Eintracht 0 +0.2
Hamburger SV 0 FC Köln 1 +0.1
BVB 6 Arminia Bielefeld 0 +0.1
Leverkusen 5 VfL Borussia 0 +0.1
Werder Bremen 1 Karlsruher 3 +0.1
Week of 5/23100.0*Chance wins title100.0*Average seed
Bayern München 2 VfB Stuttgart 1 No
-0.4
VfL Wolfsburg 5 Werder Bremen 1 No
-0.0
Eintracht 2 Hamburger SV 3 +0.1
Arminia Bielefeld 2 Hannover 96 2 +0.1
VfL Borussia 1 BVB 1 +0.1
Energie Cottbus 3 Leverkusen 0 +0.1
Karlsruher 4 Hertha Berlin 0 +0.4
Points
Chance Will Win Championship