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
Doncaster 24 Newcastle 28 +0.1
If winner is:HomeDrawAway
Toronto vs Doncaster+0.0+0.0-0.2
Week of 9/17None

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsChampionship12345678Count
860-1-0InNo10046,771,898
850-0-1InNo937448,069,273
721-0-0InNo100842,954,445
Total:InNo9821,337,795,616
Games Above .500
Chance Will Make Playoffs