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 -3.4
+0.1
Kalmar 1 Halmstad 3 +0.3
-0.1
Week of 10/19100.0*Relegated100.0*Average seed
Gefle 1 IFK Norrköping 2 +30.8
-1.1
Häcken 3 Gefle 1 +11.2
-0.3
Falkenberg 2 Helsingborg 0 +6.6
-0.2
Week of 10/26100.0*Relegated100.0*Average seed
Gefle 2 Helsingborg 1 -13.9
+0.3
Mjällby 0 Kalmar 2 -13.8
+0.3
IFK Norrköping 2 Örebro 0 +4.8
-0.1
Halmstad 4 Falkenberg 0 -2.3
Falkenberg 1 Mjällby 1 -0.1
Points
Chance Will Win Championship