How are these numbers calculated?

Big Games

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

Week of 9/10None
If winner is:HomeDrawAway
Week of 9/17100.0*Average seed
Barrow vs Keighley+0.1+0.1-0.4
Workington vs Whitehaven+0.1+0.1-0.1

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsChampionship12345678Count
111-112InNo1001,059,463,611*
1100-0-1InNo4555278,332,005
Total:InNo89111,337,795,616

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs