How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 4/5100.0*Chance in playoffs100.0*Average seed
OSA 13 HA 16 -16.3
-0.4
OSA 10 BF 10 -6.7
-0.1
SPA 16 EG 14 -3.4
-0.1
SPA 24 RS 8 -3.4
-0.1
HA 10 BF 14 +3.2
+0.0
Week of 4/11100.0*Chance in playoffs100.0*Average seed
OSA 16 SPA 12 +6.2
+0.3
OSA 15 RS 2 +4.8
+0.3
BF 11 SPA 18 -1.7
BF 16 LO 13 +0.3
+0.3
LO 11 BF 7 -0.1
-0.2
If winner is:HomeTieAway
OSA vs HA+13.4OutOut
+0.4-0.4-0.4
EG vs OSAOut+8.8+12.2
-0.4-0.1+0.4
EG vs HA+12.2+9.1Out
+0.1+0.1-0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs1234567Count
152-0-051.1%51496,719,547
141-0-122.02278706,915
131-1-0Out10013,438,463*
11-12Out1007,425,817*
Total:12.7%13612628,290,742

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs