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
Papua New Guinea 1 New Caledonia 1 -1.4
-0.9
-0.2
Vanuatu 0 New Zealand 5 +0.3
+2.5
Vanuatu 0 Solomon Islands 1 -0.1
-0.2
-0.0
New Zealand 3 Fiji 1 -0.1
-0.2
-0.0
Tahiti 4 Samoa 0 -0.1
+0.1
If winner is:HomeTieAway
New Caledonia vs Samoa+30.7-7.7-27.4
Yes+6.8-27.2
+1.5-0.3-1.4
Papua New Guinea vs Tahiti-1.3+1.3+0.7
-3.8-1.0+4.3
-0.1+0.1+0.0
Solomon Islands vs Fiji+0.6+0.8-0.9
+2.5+0.5-2.7
+0.0+0.1-0.0
If winner is:HomeTieAway
Week of 6/4100.0*Chance in playoffs100.0*World Cup Qualifying100.0*Average seed
Tahiti vs New Caledonia-27.0-8.6+30.7
-21.1-7.5Yes
-1.3-0.6+1.5
New Zealand vs Solomon Islands+5.0+1.3-5.6
+0.1-0.1-0.1
+0.1+0.1-0.1
Fiji vs Vanuatu-5.3+0.3+5.2
+0.8+4.3-2.6
-0.1+0.0+0.0
Papua New Guinea vs Samoa-1.8+1.7+1.0
-0.4-2.1+1.3
-0.1+0.0+0.1

What If

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

100100100100100100100100
If finish:Chance inWorld CupChance will finish regular season at seed
TPW-OTLTplayoffsQualifying12345678Count
72-000InYes3360603,275,372
51-00194.5%Yes83848502,798,264
41-01051.1Yes08434176,538,579
30-0026.592.2%06444280599,660
20-0110.143.404394892,798,240
10-020Out6.70761333,275,821
Total:48.2%75.7%6111022171117719,285,936
Points
Chance Will Make Playoffs