How are these numbers calculated?

Big Games

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

Week of 10/23100.0*PostNord-ligaen100.0*Average seed
Levanger 0 Notodden 3 -18.9
+0.5
Strømmen 2 Sandnes Ulf 1 +1.9
-0.1
Florø 1 Åsane 2 -1.5
Week of 10/30100.0*PostNord-ligaen100.0*Average seed
Notodden 2 Florø 1 -19.1
+0.5
Åsane 0 Strømmen 5 -6.6
+0.1
Ullensaker/Kisa 4 Jerv 1 -0.3
Sandnes Ulf 1 HamKam 3 +0.1
HamKam 1 Mjøndalen 3 -0.1
Week of 11/11100.0*PostNord-ligaen100.0*Average seed
Sogndal 0 Notodden 1 -16.6
+0.7
Nest-Sotra 1 Åsane 0 -16.5
+0.3
Jerv 0 Tromsdalen 1 +0.1
Points
Chance Will Win Championship