How are these numbers calculated?

Big Games

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

Week of 5/7100.0*Average seed
Valencia 4 Osasuna 1 +0.5
Sporting Gijón 1 Las Palmas 0 +0.2
Leganés 4 Real Betis 0 +0.1
Málaga 3 Celta de Vigo 0 -0.1
Week of 5/14100.0*Average seed
Espanyol 0 Valencia 1 +0.5
Alavés 3 Celta de Vigo 1 +0.2
Real Sociedad 2 Málaga 2 -0.1
Las Palmas 1 Barcelona 4 +0.1
Week of 5/17100.0*Average seed
Valencia 1 Villarreal 3 -0.5
Celta de Vigo 2 Real Sociedad 2 +0.2
Málaga 0 Real Madrid 2 +0.2
Celta de Vigo 1 Real Madrid 4 +0.1
Points
Chance Will Win Championship