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 -3.2
+0.1
Kalmar 1 Halmstad 3 +0.2
-0.1
Week of 10/19100.0*Relegated100.0*Average seed
Falkenberg 2 Helsingborg 0 -15.0
+0.7
Häcken 3 Gefle 1 -2.1
+0.1
Gefle 1 IFK Norrköping 2 +1.7
-0.0
Week of 10/26100.0*Relegated100.0*Average seed
Gefle 2 Helsingborg 1 +6.7
-0.1
Mjällby 0 Kalmar 2 -6.4
+0.0
Falkenberg 1 Mjällby 1 No
-0.2
Halmstad 4 Falkenberg 0 +4.3
-0.6
IFK Norrköping 2 Örebro 0 +1.3
-0.3
Djurgården 1 IFK Norrköping 1 -0.3
Points
Chance Will Win Championship