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
Extremadura 0 Lugo 0 -1.7
-0.0
Tenerife 2 Oviedo 1 +0.7
-0.1
Numancia 1 Reus 0 +0.2
-0.1
Week of 5/31100.0*Segunda Division B100.0*Average seed
Lugo 0 Tenerife 1 +7.4
-1.0
Oviedo 4 Rayo 3 No
+0.0
Zaragoza 0 Numancia 0 -0.1
Cadiz 0 Extremadura 1 -0.2
Week of 6/8None
Points
Chance Will Win Championship