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
Comsewogue 64 Lindenhurst 65 -17.0
-1.9
Mt. Sinai 68 Sachem East 58 +2.7
+0.1
Sachem North 53 BBP 62 +1.0
+0.1
ESM 47 Smithtown East 57 -0.9
-0.1
Centereach 56 PatchMed 62 -0.8
-0.0
Lindenhurst 77 PatchMed 81 -0.8
-0.0
Smithtown East 72 Floyd 44 -0.7
-0.0
Sachem North 48 Pierson 38 -0.7
-0.1
Copiague 54 Commack 63 +0.6
+0.1
Central Islip 62 Newfield 58 +0.3

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
106-0In0172132261120015,963
95-1In00192433238100117,945
84-2100.0%00028223224102000361,767
73-386.80016193328112000584,414
62-419.00004153031164000523,414
51-50.1001824352481000247,540
40-6Out0031531301541048,161
Total:58.1%0000012235668121312107642100001,899,204
Games Above .500
Chance Will Make Playoffs