How are these numbers calculated?

Big Games

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

Week of 7/1100.0*Average seed
Kitsap 2 North Sound 1 +0.1
Fraser Valley 0 Victoria 1 -0.1
Week of 7/8100.0*Average seed
Orange County 6 Tuscan 0 -0.1
Week of 7/15None
Points
Chance Will Make Playoffs