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
T. Pagar 5 Tampines 1 +3.5
+0.4
Geylang 0 SAFFC 3 -2.3
+0.1
SAFFC 5 Balestier 1 No
Sembawang 2 Woodlands 0 +0.8
+0.1
Woodlands 2 Geylang 1 -0.2
Balestier 4 Home 1 -0.1
Week of 7/12100.0*Chance wins title100.0*Average seed
T. Pagar 1 Home 0 +0.3
Jurong 0 Woodlands 2 -0.2
Week of 7/19100.0*Chance wins title100.0*Average seed
SAFFC 0 T. Pagar 1 +0.6
Points
Chance Will Win Championship