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 +1.9
Sembawang 2 Woodlands 0 +1.2
T. Pagar 5 Tampines 1 -0.3
SAFFC 5 Balestier 1 Yes
Week of 7/12None
Week of 7/19None
Chance Will Win Championship