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
Dragons 18 Tigers 34 -8.1
+0.4
Storm 64 Eels 4 No
Week of 8/30100.0*Wooden Spoon100.0*Average seed
Eels 26 Dragons 22 +0.2
Tigers 18 Rabbitohs 32 -0.2
Week of 9/5100.0*Wooden Spoon100.0*Average seed
Dragons 19 Warriors 10 -0.3
Cowboys 50 Tigers 22 -0.2
Games Above .500
Chance Will Make Playoffs