How are these numbers calculated?

Big Games

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

Week of 5/24100.0*Segunda Division B100.0*Average seed
Rayo 0 Cordoba 1 +20.1
-0.4
Tenerife 2 Oviedo 1 +4.9
-0.1
Numancia 1 Reus 0 +4.5
-0.1
Extremadura 0 Lugo 0 +1.0
Week of 5/31100.0*Segunda Division B100.0*Average seed
Oviedo 4 Rayo 3 Yes
-0.1
Lugo 0 Tenerife 1 -6.0
+0.1
Zaragoza 0 Numancia 0 +0.8
Cordoba 2 Osasuna 3 +0.0
Week of 6/8None
Points
Chance Will Win Championship