How are these numbers calculated?

Big Games

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

Monday, 4/9100.0*Chance in playoffs100.0*Average seed
MEL 14 EC 5 +1.2
+0.3
MEL 18 EG 15 +0.5
+0.4
SPA 21 BF 10 +0.4
JPP 16 BF 13 +0.4
RS 6 OS 17 -0.2
+0.1
RS 14 SAL 25 +0.1
EG 22 EC 10 +0.1
If winner is:HomeTieAway
SAL vs OS+0.6-0.6-0.6
Tuesday, 4/10100.0*Chance in playoffs100.0*Average seed
SPA 21 RS 4 +0.1
If winner is:HomeTieAway
SPA vs MELOutOut+1.3
-0.3-0.3+0.4
RS vs MELOutOut+1.3
-0.4+0.1+0.4
HA vs EG-0.6-0.6+0.6
QE vs HA+0.6-0.6-0.6

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
112-0-05.1%535602,594,942
9-10Out1005,464,702*
80-1-1Out5050273,510
70-2-0Out1002,591,182
Total:1.2%18662510,924,336

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs