How are these numbers calculated?

Big Games

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

Week of 5/28100.0*Chance in playoffs100.0*World Cup Qualifying100.0*Average seed
New Zealand 3 Fiji 1 +25.5
+19.0
+1.3
Vanuatu 0 New Zealand 5 +9.8
Yes
+0.4
Tahiti 4 Samoa 0 -0.1
-0.1
-0.0
Papua New Guinea 1 New Caledonia 1 +0.1
+0.1
Vanuatu 0 Solomon Islands 1 +0.1
-0.0
If winner is:HomeTieAway
Solomon Islands vs FijiInIn-0.8
-0.0+0.0+0.1
Papua New Guinea vs Tahiti-0.1+0.1+0.1
+0.1+0.2-0.1
If winner is:HomeTieAway
Week of 6/4100.0*Chance in playoffs100.0*World Cup Qualifying100.0*Average seed
New Zealand vs Solomon IslandsInIn-0.4
+0.5-0.0-1.3
Tahiti vs New Caledonia-0.0+0.1-0.1
-0.1+0.2+0.1
Fiji vs Vanuatu-0.1InIn
Papua New Guinea vs Samoa-0.0+0.1+0.0
-0.0+0.1+0.1

What If

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

100100100100100100100100
If finish:Chance inWorld CupChance will finish regular season at seed
TPW-OTLTplayoffsQualifying12345678Count
91-000InYes861436,368,900
70-001InYes395110010,873,687
60-01099.5%Yes1156816014,474,421
Total:99.9%Yes5821184061,717,008
Points
Chance Will Make Playoffs