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 -16.0
-1.3
Comsewogue 64 Lindenhurst 65 +1.8
+0.1
ESM 47 Smithtown East 57 -1.6
-0.1
Centereach 56 PatchMed 62 -1.3
-0.1
Lindenhurst 77 PatchMed 81 -0.9
-0.0
Smithtown East 72 Floyd 44 -0.9
-0.1
Sachem North 53 BBP 62 +0.6
Bellport 61 Riverhead 64 +0.5
Central Islip 62 Newfield 58 +0.4
Copiague 54 Commack 63 +0.3
+0.0

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
106-0In001516302814410013,192
95-1100.0%0015163029154000115,733
84-297.80001620332711200393,235
73-360.2001620342810200629,988
62-43.300315323214300513,629
51-50.0003122530217100202,200
40-6Out0031229331850031,227
Total:47.9%00000001235912141412107421100001,899,204
Games Above .500
Chance Will Make Playoffs