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 -16.7
+0.8
Levadiakos 0 AEK 2 -9.7
+0.2
Larissa 1 Xanthi 0 +6.1
-0.3
Veria 4 Asteras 3 -0.6
+0.1
Kerkyra 1 Panionios 0 -0.1
Week of 4/30100.0*Relegated100.0*Average seed
Asteras 2 Iraklis 2 +0.3
Panathinaikos 2 Larissa 0 +0.3
Points
Chance Will Make Playoffs