How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Friday100.0*Chance in playoffs100.0*Average seed
Potomac 5 Salem 4 +12.3
+0.2
Potomac 4 Salem 2 +12.3
+0.2
Winston-Salem 5 Wilmington 3 +5.8
+0.1
Winston-Salem 11 Wilmington 3 +5.8
+0.1
If winner is:HomeAway
Saturday100.0*Chance in playoffs100.0*Average seed
Winston-Salem vs Wilmington+3.6-8.6
+0.1-0.2
Potomac vs Salem+6.6-3.1
+0.1-0.1
Potomac vs Salem+6.6-3.1
+0.1-0.1

What If

Chances based on how well the Winston-Salem finish out the regular season.   Explain

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
44-45In1004,225,874*
437-299.0%9916,821,519
426-393.09377,783,348
415-477.577235,633,874
404-553.453472,684,356
393-629.0290710845,764
382-712.3120862171,125
371-84.031851120,404
360-90.300663319,908
Total:86.1%860140028,196,172

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs