How are these numbers calculated?

Big Games

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

Week of 6/15100.0*Chance in playoffs100.0*Average seed
Brasil 3 Japão 0 +25.5
+0.6
Brasil 3 México 0 +9.1
+0.2
Itália 4 Japão 3 +0.3
-0.0
Week of 6/22100.0*Chance in playoffs100.0*Average seed
Itália 2 Brasil 4 +0.1

What If

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

100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs1234Count
90-0-0In100183,939,617,568
Total:In100183,939,617,568
Points
Chance Will Make Playoffs