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*Average seed
OFI Crete 1 Panionios 2 +0.4
AE Larissa 3 Ergotelis 2 -0.1
Skoda Xanthi 1 Olympiakos 4 +0.1
Asteras 1 Levadiakos 2 +0.1
PAOK 0 AEK Athens 4 +0.0
Week of 4/20100.0*Average seed
Panionios 2 Atromitos 1 +0.4
AE Larissa 4 PAOK 3 -0.3
AEK Athens 2 Asteras 0 +0.2
Points
Chance Will Win Championship