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
Nest-Sotra 2 Tromsdalen 0 No
+1.2
Strømmen 2 Sandnes Ulf 1 +0.0
Florø 1 Åsane 2 -0.1
Jerv 1 Kongsvinger 2 +0.0
Viking 1 Ullensaker/Kisa 0 +0.1
Week of 10/30100.0*PostNord-ligaen100.0*Average seed
Kongsvinger 2 Nest-Sotra 2 -0.2
Tromsdalen 0 Sogndal 3 +0.2
HamKam 1 Mjøndalen 3 +0.2
Ullensaker/Kisa 4 Jerv 1 -0.1
Åsane 0 Strømmen 5 -0.1
Sandnes Ulf 1 HamKam 3 +0.0
Week of 11/11100.0*PostNord-ligaen100.0*Average seed
Nest-Sotra 1 Åsane 0 +1.5
Levanger 3 Sandnes Ulf 4 -0.4
Jerv 0 Tromsdalen 1 -0.3
Viking 3 Kongsvinger 1 +0.2
HamKam 3 Ullensaker/Kisa 1 -0.2
Strømmen 0 Aalesund 1 +0.2
Points
Chance Will Win Championship