How are these numbers calculated?

Big Games

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

Week of 4/13100.0*Relegated100.0*Average seed
AE Larissa 3 Ergotelis 2 +22.4
-0.5
Asteras 1 Levadiakos 2 +15.6
-0.2
Veria 1 Atromitos 1 -1.4
+0.1
Iraklis 5 Kalamarias 2 -0.3
Week of 4/20100.0*Relegated100.0*Average seed
Ergotelis 2 Skoda Xanthi 0 -37.1
+0.5
Panionios 2 Atromitos 1 -13.6
+0.2
Levadiakos 5 Veria 3 +7.9
-0.1
Aris FC 2 OFI Crete 0 -0.2
AEK Athens 2 Asteras 0 -0.2
Olympiakos 3 Iraklis 1 -0.1
Points
Chance Will Win Championship