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
Tenerife 2 Oviedo 1 +6.6
-0.1
Numancia 1 Reus 0 +2.5
-0.0
Extremadura 0 Lugo 0 +1.6
-0.0
Week of 5/31100.0*Segunda Division B100.0*Average seed
Oviedo 4 Rayo 3 Yes
-0.1
Lugo 0 Tenerife 1 -5.4
+0.1
Zaragoza 0 Numancia 0 +0.8
Week of 6/8None
Points
Chance Will Win Championship