How are these numbers calculated?

Big Games

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

Week of 6/16100.0*Chance in playoffs100.0*Round of 16100.0*Average seed
Nigeria 2 Korea 0 -31.6
-31.6
-4.4
France 2 Norway 1 +2.2
+2.2
+0.1
Sweden 5 Thailand 1 +0.8
+0.8
+0.1
United States 3 Chile 0 +0.8
+0.8
+0.1
England 1 Argentina 0 +0.7
+0.7
Jamaica 0 Italy 5 +0.6
+0.6
+0.1
Canada 2 New Zealand 0 +0.6
+0.6
+0.1
Netherlands 3 Cameroon 1 +0.6
+0.6
+0.1
South Africa 0 China 1 -0.5
-0.5
Australia 3 Brazil 2 -0.5
-0.5
-0.1
Japan 2 Scotland 1 -0.4
-0.4
Germany 1 Spain 0 +0.3
+0.3
Week of 6/20100.0*Chance in playoffs100.0*Round of 16100.0*Average seed
Korea 1 Norway 2 Out
No
-3.6
Nigeria 0 France 1 +4.3
+4.3
+0.7
Scotland 3 Argentina 3 +2.5
+2.5
-0.1
China 0 Spain 0 -2.1
-2.1
-0.1
Thailand 0 Chile 2 -1.6
-1.6
+0.1
Italy 0 Brazil 1 -1.1
-1.1
-0.1
South Africa 0 Germany 4 +0.9
+0.9
+0.3
Cameroon 2 New Zealand 1 -0.8
-0.8
+0.1
Jamaica 1 Australia 4 -0.4
-0.4
+0.2
Points
Chance Will Make Playoffs