How are these numbers calculated?

Big Games

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

If winner is:HomeDrawAway
Week of 9/20100.0*Chance in playoffs100.0*Average seed
Wales vs Georgia-18.6+2.1+18.5
-2.6-0.1+2.6
Fiji vs Uruguay+0.0-1.4+0.0
+0.0-0.2+0.0
Australia vs Fiji+0.0-1.4+0.0
+0.0-0.2+0.0
Japan vs Russia+0.0-0.0-0.1
Ireland vs Scotland-0.0+0.1-0.0
Russia vs Samoa-0.0+0.1-0.0
Italy vs Namibia-0.0+0.1-0.0
Italy vs Canada-0.0+0.1-0.0
England vs United States-0.0+0.1-0.0
New Zealand vs South Africa-0.0+0.1-0.0
England vs Tonga-0.0+0.1-0.0
France vs Argentina-0.0+0.1-0.0
If winner is:HomeDrawAway
Week of 9/28100.0*Chance in playoffs100.0*Average seed
Georgia vs Fiji+18.5+2.1-18.6
+2.6-0.1-2.6
Georgia vs Uruguay+18.5+2.1-18.6
+2.6-0.1-2.6
Australia vs Wales+0.0-1.4+0.0
+0.0-0.2+0.0
Japan vs Ireland+0.0-0.0-0.1
Scotland vs Samoa-0.0+0.1-0.0
Ireland vs Russia-0.0+0.1-0.0
New Zealand vs Canada-0.0+0.1-0.0
South Africa vs Namibia-0.0+0.1-0.0
Argentina vs Tonga-0.0+0.1-0.0
France vs United States-0.0+0.1-0.0

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLDplayoffs1234567891011121314151617181920Count
164-000In52351211,679,036,388
143-001In1444338000169,640,946
123-01097.1%210192220157230006,702,216,218
2-002100.01921272314510006,440,714
102-01179.7000212272811182000508,904,198
1-00385.00041529271013200108,911
82-02025.00000138121315141311620000010,053,005,284
1-01219.700261210151817126200012,881,953
0-00410.4137417262513410693
61-0210.000002924332381000508,870,668
0-0130.4000192534227100108,562
41-030Out000139151820181246,702,176,272
0-022Out000151629281746,437,895
20-031Out0006264425169,634,747
00-040Out01931591,679,034,151
Total:40.0%4555555565555555555528,198,497,600
Points
Chance Will Make Playoffs