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*Average seed
Kristiansund 3 Brann 1 +0.4
Ranheim 1 Tromsø 2 +0.2
Odd 0 Stabæk 3 +0.2
Week of 11/25None
Points
Chance Will Win Championship