How are these numbers calculated?

Big Games

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

Week of 7/18100.0*Chance wins title100.0*Average seed
SAFFC 4 Sembawang 0 -6.0
-0.1
T. Pagar 2 Jurong 1 -4.1
-0.2
Week of 7/25100.0*Chance wins title100.0*Average seed
Balestier 1 Geylang 0 -5.1
-0.3
Woodlands 0 SAFFC 3 -3.5
-0.1
Gombak 1 T. Pagar 3 -2.0
-0.1
Week of 8/1None
Points
Chance Will Win Championship