How are these numbers calculated?

Big Games

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

Week of 6/6100.0*Chance in playoffs100.0*Round of 16100.0*Average seed
Sweden 3 Nigeria 3 -1.4
-1.4
-0.5
United States 3 Australia 1 +0.1
+0.1
-0.0
Week of 6/13100.0*Chance in playoffs100.0*Round of 16100.0*Average seed
Australia 2 Nigeria 0 -42.8
-42.8
-5.1
Nigeria 0 United States 1 Out
No
-1.5
South Korea 2 Costa Rica 2 +1.0
+1.0
+0.1
Ivory Coast 2 Thailand 3 -0.9
-0.9
-0.0
Switzerland 10 Ecuador 1 -0.8
-0.8
-0.0
China PR 1 Netherlands 0 -0.7
-0.7
France 0 Colombia 2 -0.5
-0.5
-0.1
Canada 0 New Zealand 0 -0.5
-0.5
Brazil 1 Spain 0 +0.3
+0.3
+0.0
England 2 Mexico 1 +0.2
+0.2
United States 0 Sweden 0 -0.2
-0.2
+0.1
Mexico 0 France 5 +0.3
China PR 2 New Zealand 2 -0.1
South Korea 2 Spain 1 +0.1
Ivory Coast 1 Norway 3 +0.0
Ecuador 0 Japan 1 +0.0
Australia 1 Sweden 1 +0.0
Points
Chance Will Make Playoffs