How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Chance wins title100.0*Average seed
Tampines 1 Home 0 +38.7
+0.4
Week of 11/26100.0*Chance wins title100.0*Average seed
Tampines 5 Balestier 0 Yes
+0.3
Home 5 Geylang 0 -29.7
-0.3
Points
Chance Will Win Championship