How are these numbers calculated?

Big Games

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

Week of 8/23100.0*Wooden Spoon100.0*Average seed
Storm 64 Eels 4 -8.0
+0.1
Dragons 18 Tigers 34 +6.9
-0.4
Week of 8/30100.0*Wooden Spoon100.0*Average seed
Eels 26 Dragons 22 +3.5
-0.3
Tigers 18 Rabbitohs 32 +0.2
Week of 9/5100.0*Wooden Spoon100.0*Average seed
Dragons 19 Warriors 10 No
+0.3
Cowboys 50 Tigers 22 +0.2
Games Above .500
Chance Will Make Playoffs