How are these numbers calculated?

Big Games

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

Week of 11/11100.0*OBOS-ligaen100.0*Average seed
Odd 0 Stabæk 3 +3.8
-0.1
Strømsgodset 2 Lillestrøm 2 -2.8
-0.0
Start 0 Rosenborg 1 -1.7
+0.1
Bodø/Glimt 1 Vålerenga 1 +0.2
+0.1
Ranheim 1 Tromsø 2 -0.1
Week of 11/25100.0*OBOS-ligaen100.0*Average seed
Lillestrøm 2 Kristiansund 0 +11.3
-0.4
Stabæk 2 Strømsgodset 2 -5.3
+0.2
Haugesund 3 Start 1 -2.5
+0.1
Rosenborg 1 Bodø/Glimt 1 +0.3
-0.1
Points
Chance Will Win Championship