How are these numbers calculated?

Big Games

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

Week of 10/19100.0*Chance wins title100.0*Average seed
SAFFC 2 Tampines 3 +17.7
+0.3
Hougang 1 DPMM 3 -12.0
-0.1
Woodlands 1 DPMM 2 -4.6
-0.0
Albirex 1 Geylang 1 +4.2
+0.1
Week of 10/27None
Week of 11/1100.0*Chance wins title100.0*Average seed
DPMM 0 Balestier 2 Yes
+0.3
Tampines 1 Harimau Muda 0 Yes
+0.3
Points
Chance Will Win Championship