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
Panthers 40 Rabbitohs 10 +22.4
+1.3
Storm 16 Sea Eagles 20 -3.3
-0.1
Dragons 2 Broncos 12 -2.3
-0.2
Knights 32 Cowboys 26 -0.9
+0.0
Tigers 18 Eels 26 +0.2
+0.0
Week of 8/28100.0*Chance in playoffs100.0*Average seed
Eels 48 Panthers 6 -26.0
-1.3
Raiders 30 Knights 14 +18.1
+0.2
Titans 36 Tigers 24 +5.6
+0.3
Sea Eagles 18 Sharks 16 -4.6
-0.1
Cowboys 10 Broncos 16 -3.6
-0.1
Storm 38 Roosters 4 -1.7
-0.1
Rabbitohs 41 Dragons 6 -0.1
Week of 9/4100.0*Chance in playoffs100.0*Average seed
Knights 35 Panthers 0 Out
-1.7
Tigers 34 Bulldogs 12 -0.2
Sharks 24 Rabbitohs 26 -0.2
Dragons 37 Eels 0 +0.1
Games Above .500
Chance Will Make Playoffs