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
Larissa 1 Xanthi 0 +0.1
-0.1
Veria 4 Asteras 3 +0.1
-0.6
Levadiakos 0 AEK 2 No
Kerkyra 1 Panionios 0 -0.3
Week of 4/30100.0*Relegated100.0*Average seed
Asteras 2 Iraklis 2 -0.5
Panathinaikos 2 Larissa 0 +0.1
Points
Chance Will Make Playoffs