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 -0.2
Doncaster 24 Newcastle 28 +0.2
If winner is:HomeDrawAway
Toronto vs Doncaster+0.2+0.2-0.2
If winner is:HomeDrawAway
Week of 9/17100.0*Average seed
York vs Newcastle+0.2+0.2-0.2

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
860-1-0InNo10015,467,258
850-0-1InNo5347213,516,948
721-0-0InNo100213,517,266
Total:InNo7723442,501,472
Games Above .500
Chance Will Make Playoffs