How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Sunday, 4/5100.0*Relegated100.0*Average seed
New Zealand 0 South Korea 3 Yes
-0.6
Great Britain 4 Poland 0 -1.1
+0.1
Croatia 1 Kazakhstan 12 -1.0
+0.1
Monday, 4/6None
Points
Chance Will Win Championship