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 10/1100.0*Average seed
Bay of Plenty vs Wellington-0.4-0.1+0.4
Southland vs Hawke’s Bay+0.2-0.2-0.2
Northland vs Otago+0.1-0.1-0.1
If winner is:HomeDrawAway
Week of 10/8100.0*Average seed
Wellington vs Manawatu+0.4-0.1-0.4
Hawke’s Bay vs Waikato-0.2-0.2+0.2
Otago vs Bay of Plenty+0.1+0.1-0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seedRelegated to
TPW-OTLDplayoffs1234567ChampionshipCount
302-000In7426No3,749,928
281-001In2674No216,665
261-010In2476No7,491,834
0-002In2476No3,209
240-011In7624No215,638
220-020In2575No3,749,474
Total:In305119No15,426,748
Points
Chance Will Make Playoffs