How are these numbers calculated?

Big Games

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

Week of 5/6100.0*Average seed
Hertha 1 Leipzig 4 -0.4
Mönchengladbach 1 Augsburg 1 +0.1
Freiburg 2 Schalke 04 0 -0.1
Köln 4 Werder Bremen 3 +0.0
Week of 5/13100.0*Average seed
Darmstadt 98 0 Hertha 2 +0.6
Werder Bremen 3 Hoffenheim 5 +0.1
Freiburg 1 Ingolstadt 1 +0.1
Wolfsburg 1 Mönchengladbach 1 +0.1
Bayer Leverkusen 2 Köln 2 +0.1
Schalke 04 1 Hamburg 1 +0.1
Week of 5/20100.0*Average seed
Hertha 2 Bayer Leverkusen 6 -0.3
Köln 2 Mainz 05 0 -0.2
Bayern München 4 Freiburg 1 +0.0
Points
Chance Will Win Championship