How are these numbers calculated?

Big Games

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

Week of 10/19100.0*Average seed
Ljungskile 1 Östersund 3 -0.9
Värnamo 2 Ängelholm 5 -0.2
Assyriska 1 GIF Sundsvall 1 +0.0
Week of 10/26100.0*Average seed
ÖIS 1 Ljungskile 0 -0.9
Östersund 1 Värnamo 2 +0.2
Ängelholm 3 Hammarby 2 -0.2
Varberg 4 Assyriska 1 +0.2
Örebro 6 GAIS 1 +0.1
Week of 11/2100.0*Average seed
Ljungskile 0 Örebro 1 -0.6
Hammarby 2 Östersund 1 +0.3
Assyriska 1 Degerfors 1 +0.1
Points
Chance Will Win Championship