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 +25.6
+19.4
+1.4
Vanuatu 0 New Zealand 5 +25.2
Yes
+1.2
Papua New Guinea 1 New Caledonia 1 +0.7
+0.6
+0.1
Vanuatu 0 Solomon Islands 1 -0.2
+0.2
-0.0
Tahiti 4 Samoa 0 -0.2
-0.1
-0.0
If winner is:HomeTieAway
Solomon Islands vs FijiInIn-1.1
-0.1+0.0+0.1
New Caledonia vs Samoa-0.1+0.6-0.2
-0.1+0.2+0.0
Papua New Guinea vs Tahiti-0.1+0.6-0.2
+0.1+0.2-0.2
If winner is:HomeTieAway
Week of 6/4100.0*Chance in playoffs100.0*World Cup Qualifying100.0*Average seed
Fiji vs Vanuatu-1.1InIn
-0.1+0.1+0.1
New Zealand vs Solomon IslandsInIn-1.1
+0.9+0.3-1.0
Papua New Guinea vs Samoa-0.1+0.6-0.2
-0.1+0.2+0.0
Tahiti vs New Caledonia-0.2+0.6-0.1
-0.2+0.2+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
91-000InYes89117,941,371
70-001InYes39501103,400,216
60-01098.1%Yes323522127,944,349
Total:99.2%Yes4523239119,285,936
Points
Chance Will Make Playoffs