How are these numbers calculated?

Big Games

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

Sunday, 7/5100.0*Chance in playoffs100.0*Round of 4100.0*Average seed
Papua New Guinea 0 New Zealand 1 Out
No
-0.4
Monday, 7/6100.0*Chance in playoffs100.0*Round of 4100.0*Average seed
Solomon Islands 1 Papua New Guinea 2 +0.7
Tuesday, 7/7None
Points
Chance Will Make Playoffs