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
Tonga 35 Namibia 21 -2.8
Wales 23 Fiji 13 +0.1
France 41 Canada 18 +0.1
Ireland 44 Romania 10 -0.1
Scotland 39 United States 16 -0.1
Australia 65 Uruguay 3 -0.0
Argentina 54 Georgia 9 -0.0
England 25 Wales 28 -0.0
Week of 10/2100.0*Lottery seed
Namibia 16 Georgia 17 +0.2
South Africa 64 United States 0 -0.2
Canada 15 Romania 17 +0.1
Uruguay 15 Fiji 47 -0.1
New Zealand 43 Georgia 10 -0.1
South Africa 34 Scotland 16 +0.1
England 13 Australia 33 -0.0
Week of 10/9100.0*Lottery seed
New Zealand 47 Tonga 9 +1.9
Samoa 33 Scotland 36 -0.6
England 60 Uruguay 3 +0.1
If winner is:HomeTieAway
Italy vs Romania-0.1+0.9-0.1

What If

100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TPW-OTLT1234567891011121314151617181920
40-0008614
Total:8614
Points
Chance Will Make Playoffs