How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Tuesday, 5/24100.0*Chance wins title100.0*UEFA CL100.0*Europa League100.0*Average seed
Panathinaikos 1 AEK 0 -15.7
-15.7
+15.7
-0.5
Panionios 0 PAOK 1 -10.5
-10.5
+10.5
-0.1
Saturday, 5/28100.0*Chance wins title100.0*UEFA CL100.0*Europa League100.0*Average seed
AEK 1 PAOK 0 +8.6
+8.6
-8.6
+0.6
Panathinaikos 1 Panionios 0 -0.2
Tuesday, 5/31100.0*Chance wins title100.0*UEFA CL100.0*Europa League100.0*Average seed
PAOK 2 Panathinaikos 3 +32.9
+32.9
-32.9
-0.1
Panionios 1 AEK 2 +16.9
+16.9
-16.9
+0.2
Points
Chance Will Win Championship