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 -7.0
-1.6
-0.6
Tahiti 4 Samoa 0 -0.2
-0.0
Vanuatu 0 Solomon Islands 1 -0.1
-0.0
New Zealand 3 Fiji 1 -0.1
-0.0
Vanuatu 0 New Zealand 5 -0.1
+0.6
-0.0
If winner is:HomeTieAway
Papua New Guinea vs Tahiti+30.2+6.8-27.5
Yes-0.3-3.7
+1.4-0.4-1.0
New Caledonia vs Samoa-6.7+10.2+10.5
+0.5-1.2-0.4
-0.1+0.2+0.2
Solomon Islands vs Fiji+0.3+0.9-2.7
+0.3-0.2-1.5
-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
Papua New Guinea vs Samoa+10.7-27.7-47.4
Yes-1.2-48.2
+0.4-1.1-2.1
Tahiti vs New Caledonia+5.8-6.2-10.7
+0.7-0.5-1.6
+0.1-0.0-0.2
New Zealand vs Solomon Islands+1.7-0.9-3.7
+0.0+0.0-0.1
Fiji vs Vanuatu-1.4+2.0+3.0
-0.2+2.0-1.1
-0.0+0.1+0.0

What If

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

100100100100100100100100
If finish:Chance inWorld CupChance will finish regular season at seed
TPW-OTLTplayoffsQualifying12345678Count
72-000InYes12789017,359,628
51-00195.7%Yes225694012,266,443
41-01051.0Yes044745422,630,688
30-0028.898.4%096030201,916,781
20-0110.680.4114661905,649,407
10-020Out10.301078111,894,061
Total:66.2%95.4%3229312094061,717,008
Points
Chance Will Make Playoffs