How are these numbers calculated?

Big Games

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

Week of 8/20100.0*Chance in playoffs100.0*Average seed
Sharks 40 Tigers 18 +2.0
+0.3
Dragons 19 Panthers 12 -0.4
-0.0
Sea Eagles 16 Eels 20 In
Rabbitohs 18 Bulldogs 32 -0.4
+0.0
Storm 6 Knights 20 +0.1
Week of 8/27100.0*Chance in playoffs100.0*Average seed
Eels 28 Sharks 35 +0.4
Rabbitohs 12 Broncos 47 +0.2
Knights 18 Bulldogs 20 -0.1
Week of 9/3100.0*Chance in playoffs100.0*Average seed
Roosters 30 Rabbitohs 0 +0.1
If winner is:HomeDrawAway
Sharks vs Sea Eagles+0.2+0.2-0.5
Bulldogs vs Warriors-0.1+0.2+0.2

What If

Chances based on how well the Sharks finish out the regular season.   Explain

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-D-Lplayoffs12345678910111213141516SpoonCount
77-78In100No4,507,774,465*
760-0-1In2971No1,710,471,791
Total:In8020No6,218,246,256

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs