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 -26.6
-0.5
Geylang 0 Hougang 4 +21.0
+0.3
Tampines 3 Balestier 1 +8.4
+0.1
Home 2 Warriors 3 +3.8
+0.1
Week of 10/24100.0*Chance in playoffs100.0*Average seed
Hougang 4 T. Pagar 2 In
+0.6
Albirex 2 Home 1 +5.4
DPMM 1 Balestier 1 +1.7
+0.0
Week of 10/31None
Points
Chance Will Make Playoffs