How are these numbers calculated?

Big Games

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

Week of 4/29100.0*Average seed
Bayer Leverkusen 0 Stuttgart 1 -0.3
Hertha BSC 2 Augsburg 2 -0.2
Mainz 05 3 Leipzig 0 +0.1
Hoffenheim 3 Hannover 96 1 +0.1
Schalke 04 1 Mönchengladbach 1 -0.0
Werder Bremen 1 Borussia Dortmund 1 +0.0
Week of 5/5100.0*Average seed
Augsburg 1 Schalke 04 2 -0.7
Stuttgart 2 Hoffenheim 0 -0.2
Leipzig 4 Wolfsburg 1 -0.1
Mönchengladbach 3 Freiburg 1 -0.1
Eintracht Frank 3 Hamburger SV 0 -0.0
Werder Bremen 0 Bayer Leverkusen 0 +0.0
Hannover 96 3 Hertha BSC 1 +0.0
Week of 5/12100.0*Average seed
Freiburg 2 Augsburg 0 -1.0
Hertha BSC 2 Leipzig 6 +0.3
Bayer Leverkusen 3 Hannover 96 2 +0.3
Mainz 05 1 Werder Bremen 2 -0.2
Points
Chance Will Win Championship