How are these numbers calculated?

Big Games

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

Week of 7/5100.0*Chance wins title100.0*Average seed
Balestier 4 Home 1 +0.4
Geylang 0 SAFFC 3 No
+0.2
T. Pagar 5 Tampines 1 No
SAFFC 5 Balestier 1 -0.3
Woodlands 2 Geylang 1 +0.0
Week of 7/12100.0*Chance wins title100.0*Average seed
Sembawang 1 Balestier 3 +0.2
Week of 7/19None
Points
Chance Will Win Championship