How are these numbers calculated?

Big Games

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

Week of 8/21100.0*Chance in playoffs100.0*Average seed
Tigers 18 Eels 26 -33.8
-1.6
Dragons 2 Broncos 12 -6.9
-0.3
Storm 16 Sea Eagles 20 -6.5
-0.2
Panthers 40 Rabbitohs 10 -2.1
-0.0
Knights 32 Cowboys 26 -0.2
+0.0
Week of 8/28100.0*Chance in playoffs100.0*Average seed
Titans 36 Tigers 24 -9.3
-0.5
Sea Eagles 18 Sharks 16 Out
-0.0
Eels 48 Panthers 6 -1.5
-0.0
Cowboys 10 Broncos 16 -1.0
+0.1
Rabbitohs 41 Dragons 6 -0.2
Raiders 30 Knights 14 +0.1
Week of 9/4100.0*Chance in playoffs100.0*Average seed
Tigers 34 Bulldogs 12 +1.6
Games Above .500
Chance Will Make Playoffs