How are these numbers calculated?

Big Games

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

Week of 10/11100.0*Chance wins title100.0*Average seed
Balestier 1 Tampines 4 +19.4
+0.3
Albirex 2 SAFFC 2 +6.3
+0.1
Home 4 Woodlands 2 +3.4
+0.1
Week of 10/18100.0*Chance wins title100.0*Average seed
Tampines 3 Home 5 -8.8
-0.1
SAFFC 3 Geylang 3 +2.9
+0.0
Week of 10/25100.0*Chance wins title100.0*Average seed
Sinchi 2 SAFFC 2 Yes
+0.1
Woodlands 1 Tampines 2 Yes
+0.1
Points
Chance Will Win Championship