How are these numbers calculated?

Big Games

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

Week of 11/20100.0*Chance in playoffs100.0*Average seed
Switzerland 1 Cameroon 0 +25.6
+0.7
Brazil 2 Serbia 0 -0.2
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Brazil 1 Switzerland 0 -9.3
-0.5
Cameroon 3 Serbia 3 +3.6
+0.1
If winner is:HomeDrawAway
Serbia vs SwitzerlandOut+23.4In
-0.8+0.2+0.3
Cameroon vs Brazil-13.1+1.0+1.0

What If

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

100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs1234Count
61-0-0In5954,606,254
40-1-095.2%9551,807,871
30-0-1Out9372,399,651
Total:71.8%3692628,813,776
Points
Chance Will Make Playoffs

Lottery

Ye of little faith, already thinking about next year. Here are the big games and what ifs for draft seeds.

Big Games

Week of 11/20100.0*Lottery seed
Switzerland 1 Cameroon 0 -5.4
Tunisia 0 Australia 1 -0.1
Argentina 2 Mexico 0 -0.1
Netherlands 1 Ecuador 1 -0.1
Uruguay 0 South Korea 0 -0.1
Brazil 2 Serbia 0 +0.1
France 2 Denmark 1 +0.0
Poland 2 Saudi Arabia 0 +0.0
Week of 11/27100.0*Lottery seed
Brazil 1 Switzerland 0 +4.8
Cameroon 3 Serbia 3 -0.2
Netherlands 11 Qatar 29 -0.2
Spain 1 Germany 1 -0.2
Japan 0 Costa Rica 1 -0.2
South Korea 2 Ghana 3 -0.1
Croatia 4 Canada 1 +0.0
Portugal 2 Uruguay 0 +0.0
Belgium 0 Morocco 2 +0.0
If winner is:HomeDrawAway
Serbia vs Switzerland+8.0-0.6-3.9
Cameroon vs Brazil-0.5+0.0+0.0
Canada vs Morocco-0.2-0.3+0.1
Australia vs Denmark+0.1-0.2-0.0
Ghana vs Uruguay+0.1-0.2-0.0
Saudi Arabia vs Mexico+0.1-0.2-0.0
Costa Rica vs Germany+0.1-0.2+0.0
Tunisia vs France+0.2-0.0-0.0
South Korea vs Portugal+0.2-0.0-0.0
Ecuador vs Senegal-0.1+0.1+0.1
Croatia vs Belgium+0.0-0.2-0.0
Japan vs Spain+0.1+0.1-0.0
Poland vs Argentina-0.0+0.1+0.1
Wales vs England+0.1-0.0-0.0

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TPW-D-L1234567891011121314151617181920212223242526272829303132
61-0-000001221254719400
40-1-00172335255320000
30-0-1291820171511620000
Total:00000110132511775111255543210000