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 10/1100.0*Lottery seed
North Harbour 32 Otago 39 +0.6
Waikato 9 Counties Manukau 30 -0.2
Manawatu 10 Taranaki 44 -0.2
If winner is:HomeDrawAway
Southland vs Hawke’s Bay+0.6-0.1-0.1
If winner is:HomeDrawAway
Week of 10/8100.0*Lottery seed
North Harbour vs Northland-0.4-0.0+1.6
Wellington vs Manawatu-0.1-0.1+0.7
Canterbury vs Southland-0.1-0.0+0.6
Hawke’s Bay vs Waikato-0.0+0.3+0.3

What If

100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TPW-OTLD1234567891011121314
121-0002453212
100-00163334
80-010991
Total:194116230
Points
Chance Will Make Playoffs