How are these numbers calculated?

Big Games

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

Week of 12/27100.0*Average seed
Northport 75 HHH West 69 -0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
94-0In100487,051
83-1In73252817,926
72-2In418342912300474,329
61-3In001722332510200110,867
50-4100.0%016182927144109,031
Total:100.0%58159731121100000001,899,204
Games Above .500
Chance Will Make Playoffs