How are these numbers calculated?

Big Games

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

Week of 9/8100.0*Average seed
Los Angeles II 1 LAFC II 2 -0.3
Week of 9/15100.0*Average seed
St Louis II 4 Los Angeles II 1 -0.3
LAFC II 4 Portland II 0 -0.2
Week of 9/24100.0*Average seed
Los Angeles II 1 Houston II 2 -0.3
San Jose II 1 LAFC II 0 +0.3
Points
Chance Will Make Playoffs