How are these numbers calculated?

Big Games

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

Week of 11/28100.0*OBOS-ligaen100.0*Average seed
Brann 0 Molde 1 +7.4
-0.3
Mjøndalen 1 Sarpsborg 3 -2.6
+0.2
Tromsø 0 Stabæk 0 -1.4
+0.0
Odd 1 Vålerenga 2 -0.3
Haugesund 1 Sandefjord 2 +0.3
Week of 12/5100.0*OBOS-ligaen100.0*Average seed
Stabæk 1 Rosenborg 3 -5.6
+0.2
Bodø/Glimt 2 Brann 2 +2.8
-0.1
Vålerenga 2 Mjøndalen 0 -1.8
+0.2
Week of 12/12100.0*OBOS-ligaen100.0*Average seed
Brann 2 Sarpsborg 1 -20.8
+0.7
Odd 3 Stabæk 1 -6.3
+0.1
Mjøndalen 0 Bodø/Glimt 3 +0.3
Points
Chance Will Win Championship