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
Asteras 1 Levadiakos 2 +0.1
Panathinaikos 1 Aris FC 0 -0.1
Week of 4/20100.0*Average seed
AEK Athens 2 Asteras 0 +0.1
Aris FC 2 OFI Crete 0 +0.1
Points
Chance Will Win Championship