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
Central Islip 62 Newfield 58 -6.0
-1.3
Sachem North 48 Pierson 38 -1.0
-0.1
Sachem North 53 BBP 62 +1.0
+0.1
Mt. Sinai 68 Sachem East 58 +0.8
+0.1
Comsewogue 64 Lindenhurst 65 +0.7
+0.1
ESM 47 Smithtown East 57 -0.6
-0.1
Lindenhurst 77 PatchMed 81 -0.6
-0.1
Centereach 56 PatchMed 62 -0.5
-0.0
Smithtown East 72 Floyd 44 -0.4
-0.1
Bellport 61 Riverhead 64 +0.3
Copiague 54 Commack 63 +0.2
+0.0

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
117-0In031328311961039,943
106-1In001415293016400214,821
95-2100.0%0016203427102000480,289
84-398.90021228321961000573,675
73-465.7002102330239200395,510
62-53.7000313283218410157,980
51-60.000211263220710033,849
40-7Out0313283118513,137
Total:82.6%00011245710111212118643210000001,899,204
Games Above .500
Chance Will Make Playoffs