How are these numbers calculated?

Big Games

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

Week of 4/23100.0*Relegated100.0*Average seed
Iraklis 2 Panetolikos 1 -5.2
+0.5
Larissa 1 Xanthi 0 +4.0
-0.3
Levadiakos 0 AEK 2 -3.7
+0.1
Veria 4 Asteras 3 -0.1
+0.1
Kerkyra 1 Panionios 0 -0.2
Week of 4/30100.0*Relegated100.0*Average seed
Asteras 2 Iraklis 2 +0.7
Panathinaikos 2 Larissa 0 +0.2
Points
Chance Will Make Playoffs