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
Florø 1 Åsane 2 +18.1
-0.4
Levanger 0 Notodden 3 +8.4
-0.2
Strømmen 2 Sandnes Ulf 1 +1.2
-0.0
Week of 10/30100.0*PostNord-ligaen100.0*Average seed
Notodden 2 Florø 1 Yes
-0.1
Åsane 0 Strømmen 5 -1.2
Week of 11/11None
Points
Chance Will Win Championship