How are these numbers calculated?

Big Games

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

Tuesday, 4/3100.0*Chance in playoffs100.0*Average seed
BF 13 HA 18 +15.7
+0.7
LO 24 MEL 13 +0.4
If winner is:HomeTieAway
Wednesday, 4/4100.0*Chance in playoffs100.0*Average seed
EC vs OS+3.9+3.3-4.1
+0.1+0.1-0.1
BF vs MEL-3.2-1.7+3.3
-0.2-0.1+0.2
BF vs SAL-2.8-1.9+2.9
-0.1-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
163-0-0In011414170557,737
152-0-1100.0%11949292087,527
142-1-098.004344713201,669,100
1-0-299.50435501104,724
131-1-190.3043848100175,475
0-0-382.8633441764
121-2-065.31234132301,669,403
0-1-270.2123462824,616
110-2-125.92245915087,852
100-3-08.31860311557,430
Total:74.9%01718272220504,813,928
Games Above .500
Chance Will Make Playoffs