How are these numbers calculated?

Big Games

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

Week of 10/18100.0*Relegated100.0*Average seed
Åtvidaberg 2 Mjällby 1 -5.4
+0.1
Kalmar 1 Halmstad 3 +0.4
Week of 10/19100.0*Relegated100.0*Average seed
Gefle 1 IFK Norrköping 2 -35.2
+1.1
Häcken 3 Gefle 1 -4.5
+0.1
Falkenberg 2 Helsingborg 0 +3.2
-0.2
Week of 10/26100.0*Relegated100.0*Average seed
IFK Norrköping 2 Örebro 0 No
+0.7
Falkenberg 1 Mjällby 1 +0.3
Djurgården 1 IFK Norrköping 1 +0.3
Mjällby 0 Kalmar 2 -0.2
Halmstad 4 Falkenberg 0 +0.1
Kalmar 1 AIK 1 -0.1
Points
Chance Will Win Championship