How are these numbers calculated?

Big Games

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

Monday, 4/10100.0*Chance in playoffs100.0*Average seed
BF 15 OS 12 +8.9
+0.0
RS 20 OS 25 -5.5
-0.0
RS 19 BF 33 +2.1
Wednesday, 4/12100.0*Chance in playoffs100.0*Average seed
LO 15 HA 24 -6.6
-0.2
LO 14 SPA 24 -6.6
-0.3
SPA 11 HA 16 +0.1
Thursday, 4/13100.0*Chance in playoffs100.0*Average seed
BF 15 LO 10 -25.1
-0.3
SPA 22 LO 5 -25.1
-0.3
Games Above .500
Chance Will Make Playoffs