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
Real Betis 0 Sevilla 2 -0.2
Atlético Madrid 1 Deportivo 0 +0.1
Barcelona 2 Mallorca 3 +0.1
Week of 5/17100.0*Average seed
Valencia 3 Atlético Madrid 1 -0.7
Murcia 3 Barcelona 5 -0.3
Sevilla 4 Athletic Bilbao 1 -0.1
Points
Chance Will Win Championship