How are these numbers calculated?

Big Games

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

Week of 7/29100.0*Wooden Spoon100.0*Average seed
Canterbury 18 Illawarra 12 +3.6
-0.6
Norths 20 Wests 16 -2.7
+0.1
Gold Coast 14 Easts 38 -1.7
+0.1
Newcastle 12 Penrith 23 -1.2
+0.2
Parramatta 22 Brisbane 14 +0.1
-0.1
Week of 8/5100.0*Wooden Spoon100.0*Average seed
Wests 23 Manly 20 +1.5
-0.1
Illawarra 14 Cronulla 22 +1.5
-0.4
Brisbane 24 Newcastle 8 -0.8
+0.2
Souths 14 Gold Coast 14 -0.2
+0.1
Canberra 26 Easts 18 +0.1
Norths 12 Parramatta 6 +0.1
Week of 8/12100.0*Wooden Spoon100.0*Average seed
Gold Coast 4 Canberra 24 No
+0.2
Easts 10 Illawarra 31 +0.4
Parramatta 16 Wests 12 +0.2
Newcastle 38 Norths 6 -0.2
Games Above .500
Chance Will Make Playoffs