How are these numbers calculated?

Big Games

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

Week of 10/1100.0*Chance in playoffs100.0*Average seed
North Harbour 32 Otago 39 +2.5
+0.2
If winner is:HomeDrawAway
Bay of Plenty vs Wellington-0.2+0.2+0.1
Northland vs Otago-0.3+0.0+0.0
If winner is:HomeDrawAway
Week of 10/8100.0*Chance in playoffs100.0*Average seed
Otago vs Bay of Plenty+0.2+0.2-0.3
Wellington vs Manawatu-0.0+0.2+0.2

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seedRelegated to
TPW-OTLDplayoffs1234567ChampionshipCount
242-000In0793No21,952,814
221-001In595No929,787
201-010In6832No20,434,967
0-002In100No9,334
180-011In6040No370,994
160-020In100No2,582,348
Total:In037620No46,280,244
Points
Chance Will Make Playoffs