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
Geylang 0 SAFFC 3 +6.1
+0.1
T. Pagar 5 Tampines 1 -3.1
Sembawang 2 Woodlands 0 +2.8
+0.0
SAFFC 5 Balestier 1 Yes
Week of 7/12None
Week of 7/19None
Points
Chance Will Win Championship