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
Mt. Sinai 68 Sachem East 58 -0.4
-0.1
Sayville 52 Hauppauge 59 +0.4
Center Moriches 98 BBP 55 +0.4
+0.1
ESM 47 Smithtown East 57 +0.4
+0.1
Hampton Bays 77 Westhampton 71 +0.1
Sachem North 53 BBP 62 -0.1
Harborfields 59 Connetquot 54 -0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
95-0In0621362691017,226
84-189.0%017223325920086,225
73-27.0001620322712200172,035
62-30.000182434248100173,199
51-4Out00212303518386,912
40-5Out0113414417,117
Total:19.2%0011246681111111297642552,714
Games Above .500
Chance Will Make Playoffs