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
Copiague 54 Commack 63 +2.2
+1.7
Mt. Sinai 68 Sachem East 58 +0.2
+0.1
Sachem North 53 BBP 62 +0.1
Riverhead 58 Southampton 62 +0.1
Comsewogue 64 Lindenhurst 65 +0.1
Smithtown East 72 Floyd 44 -0.1
Lindenhurst 77 PatchMed 81 -0.0

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
114-0In56385034,392
103-1In10393713200138,551
92-2In05183128144100207,081
81-3In00141527291761000138,371
70-4100.0%00172029251241034,319
Total:100.0%614161511657753221000552,714
Games Above .500
Chance Will Make Playoffs