How are these numbers calculated?

Big Games

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

Week of 5/11100.0*Average seed
Barcelona 2 Mallorca 3 +0.6
Atlético Madrid 1 Deportivo 0 +0.1
Athletic Bilbao 0 Racing 0 -0.0
Week of 5/17100.0*Average seed
Racing 1 Osasuna 0 -0.3
Mallorca 3 Real Zaragoza 2 +0.1
Points
Chance Will Win Championship