How are these numbers calculated?

Big Games

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

Week of 9/25100.0*Chance in playoffs100.0*Average seed
Argentina 54 Georgia 9 +2.6
+0.1
Tonga 35 Namibia 21 -2.3
-0.1
Week of 10/2100.0*Chance in playoffs100.0*Average seed
New Zealand 43 Georgia 10 In
+0.3
Week of 10/9None

What If

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

100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLTplayoffs12345Count
160-000In100901,705,920
Total:In100901,705,920
Points
Chance Will Make Playoffs