How are these numbers calculated?

Big Games

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

Tuesday, 4/2100.0*Chance in playoffs100.0*Average seed
MEL 19 ABJ 15 -1.6
-0.3
SPA 15 VR 5 -0.5
-0.1
MCN 9 SPA 6 +0.5
+0.1
If winner is:HomeTieAway
EC vs ABJ-16.2+3.7+13.7
-0.9+0.4+0.7
MCN vs VR+0.1-0.9-1.0
Wednesday, 4/3100.0*Chance in playoffs100.0*Average seed
WP 12 ABJ 8 -6.2
-0.9
WP 17 HA 12 +0.6
+0.0
EG 6 MEL 8 +0.0
EG 6 SAL 11 +0.0
If winner is:HomeTieAway
HA vs ABJ-25.7+2.6+15.8
-0.9+0.2+0.6

What If

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

100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs1234567891011Count
102-0-0In02170906,910,564
91-0-1100.0%017661610631,675
81-1-097.0039583010,168,992
0-0-294.341546014,317
70-1-168.91059310459,671
60-2-016.311578603,653,395
Total:84.0%07242231151021,838,614
Games Above .500
Chance Will Make Playoffs