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*Chance in playoffs100.0*Average seed
Hampton Bays 77 Westhampton 71 -3.5
-1.0
Harborfields 59 Connetquot 54 -0.4
-0.1
ESM 47 Smithtown East 57 +0.1
Sachem North 53 BBP 62 -0.1
Center Moriches 98 BBP 55 +0.1
Mt. Sinai 68 Sachem East 58 -0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
85-050.5%0041531301540017,151
74-11.500172131251120085,816
63-2Out00151833301120172,436
52-3Out00214373711173,786
41-4Out019405186,198
30-5Out0118917,327
Total:1.8%00011245571114171914552,714
Games Above .500
Chance Will Make Playoffs