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*Segunda Division100.0*Average seed
Sporting Gijón 1 Las Palmas 0 +6.4
-0.1
Leganés 4 Real Betis 0 -3.5
+0.3
La Coruña 1 Espanyol 2 -0.1
+0.1
Week of 5/14100.0*Segunda Division100.0*Average seed
Eibar 0 Sporting Gijón 1 +3.5
-0.1
Athletic Club 1 Leganés 1 No
Villarreal 0 La Coruña 0 +0.1
+0.0
Real Betis 1 Atlético Madrid 1 -0.0
Week of 5/17100.0*Segunda Division100.0*Average seed
La Coruña 3 Las Palmas 0 -0.5
Leganés 1 Alavés 1 -0.1
Points
Chance Will Win Championship