How are these numbers calculated?

Big Games

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

Week of 4/29100.0*Chance in playoffs100.0*Average seed
Asteras 2 Apollon 1 Out
-0.0
Olympiakos 4 Panetolikos 0 Out
-0.2
Xanthi 1 Larissa 0 Out
+0.0
Levadiakos 0 Atromitos 1 +0.2
Platanias 1 Panionios 2 -0.2
Panathinaikos 0 PAOK 3 +0.1
Lamia 2 Giannina 1 +0.0
Week of 5/6100.0*Chance in playoffs100.0*Average seed
Panetolikos 0 Asteras 2 -0.2
Panionios 2 Levadiakos 0 +0.0
Points
Chance Will Make Playoffs