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
Sembawang 2 Woodlands 0 -1.6
-0.4
Geylang 0 SAFFC 3 -1.4
+0.0
Woodlands 2 Geylang 1 +0.4
T. Pagar 5 Tampines 1 -0.1
SAFFC 5 Balestier 1 +0.1
Week of 7/12100.0*Chance wins title100.0*Average seed
Jurong 0 Woodlands 2 +0.2
T. Pagar 1 Home 0 -0.1
Week of 7/19100.0*Chance wins title100.0*Average seed
SAFFC 0 T. Pagar 1 -0.7
Points
Chance Will Win Championship