How are these numbers calculated?

Big Games

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

Week of 9/10100.0*Average seed
Whitehaven 26 York 16 -0.1
If winner is:HomeDrawAway
Week of 9/17100.0*Average seed
Barrow vs Keighley+0.2+0.2-0.2
Workington vs Whitehaven+0.2+0.2-0.2

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
111-112InNo100228,990,987*
1100-0-1InNo5248213,510,485
Total:InNo7723442,501,472

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs