How are these numbers calculated?

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 9/25100.0*Lottery seed
Scotland 39 United States 16 +2.5
Wales 23 Fiji 13 -0.2
France 41 Canada 18 -0.2
Ireland 44 Romania 10 -0.1
Australia 65 Uruguay 3 -0.1
Argentina 54 Georgia 9 +0.0
South Africa 46 Samoa 6 +0.0
Week of 10/2100.0*Lottery seed
South Africa 64 United States 0 +2.3
New Zealand 43 Georgia 10 -0.2
South Africa 34 Scotland 16 +0.1
England 13 Australia 33 -0.1
Samoa 5 Japan 26 +0.1
Canada 15 Romania 17 -0.0
Namibia 16 Georgia 17 -0.0
Week of 10/9100.0*Lottery seed
England 60 Uruguay 3 -0.3
If winner is:HomeTieAway
United States vs Japan-1.1+0.4+0.9
Argentina vs Namibia-0.3-0.1+0.3
Italy vs Romania-0.2+0.2+0.2

What If

100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TPW-OTLT1234567891011121314151617181920
41-000215227
20-0014357
00-010955
Total:92218492
Points
Chance Will Make Playoffs