How are these numbers calculated?

Big Games

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

Wednesday, 3/14100.0*Chance in playoffs100.0*Average seed
HA 15 SPA 16 -10.4
-1.0
HA 12 LO 14 -9.9
-1.1
EG 14 RS 15 +0.4
-0.0
SPA 20 LO 19 -0.4
BF 29 RS 10 -0.3
-0.1
MEL 6 OS 9 -0.2
-0.0
JPP 14 OS 9 +0.2
JPP 17 MEL 9 -0.1
-0.0
EG 15 BF 24 -0.1
Monday, 3/19100.0*Chance in playoffs100.0*Average seed
SAL 14 HA 13 -25.2
-1.2
MEL 16 HA 17 +15.0
+0.9
OS 10 SPA 18 +4.7
+0.0
EG 15 OS 19 -4.0
-0.1
MEL 10 SAL 26 -1.7
-0.0
RS 18 QE 3 -1.0
RS 12 JPP 19 +0.8
-0.0
JPP 25 QE 5 -0.4
-0.1
EC 11 LO 23 -0.3
-0.1
BF 5 LO 14 -0.3
EC 11 BF 19 -0.1
Wednesday, 3/21100.0*Chance in playoffs100.0*Average seed
RS 5 HA 22 In
+1.0
RS 2 LO 27 +0.9
JPP 18 SAL 32 -0.3
-0.1
SPA 21 SAL 17 +0.2
+0.1
EG 12 SPA 25 -0.2
-0.1
SPA 1 QE 0 -0.1
-0.1
Games Above .500
Chance Will Make Playoffs