How are these numbers calculated?

Big Games

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

Week of 10/17100.0*Chance in playoffs100.0*Average seed
Y. Lions 2 Hougang 0 +4.3
+0.1
Geylang 0 Hougang 4 -2.0
Tampines 3 Balestier 1 +1.8
-0.0
Home 2 Warriors 3 +0.5
Week of 10/24100.0*Chance in playoffs100.0*Average seed
Albirex 2 Home 1 In
+0.8
Albirex 0 DPMM 1 -0.5
Week of 10/31100.0*Chance in playoffs100.0*Average seed
Warriors 1 Albirex 0 -0.4
Balestier 0 Home 1 -0.2
Tampines 2 DPMM 1 -0.2
Points
Chance Will Make Playoffs