How are these numbers calculated?

Big Games

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

Week of 10/22100.0*Average seed
Häcken 2 Kalmar 3 -1.4
AIK 2 Häcken 1 -0.5
Kalmar 0 Gefle 1 +0.1
Djurgården 0 J-Södra 2 +0.1
Malmö 0 Östersund 3 -0.1
Helsingborg 1 Djurgården 2 -0.1
Örebro 0 Helsingborg 0 +0.1
Elfsborg 2 IFK Norrköping 1 -0.1
Östersund 2 Hammarby 0 -0.0
J-Södra 1 Örebro 1 +0.0
Week of 10/30100.0*Average seed
Djurgården 1 Häcken 0 -0.9
Kalmar 2 GIF Sundsvall 0 -0.1
Hammarby 1 IFK Norrköping 1 +0.1
Örebro 1 Östersund 5 -0.1
J-Södra 0 AIK 0 +0.0
Week of 11/6100.0*Average seed
Häcken 7 Falkenberg 0 +0.5
GIF Sundsvall 2 Djurgården 5 -0.3
Malmö 3 Hammarby 0 +0.1
Helsingborg 2 J-Södra 0 +0.0
Points
Chance Will Win Championship