How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 2/18100.0*Chance in playoffs100.0*Average seed
Mile-Enders 17 Crew 21 +19.5
+0.5
Bizoune 21 Loonies 10 +4.5
+0.0
Balls 15 Titans 20 +3.9
+0.1
Punks 18 Calumets 13 -0.1
Week of 2/25100.0*Chance in playoffs100.0*Average seed
Mile-Enders 14 Loonies 15 -18.2
-0.1
National 23 Crew 17 -15.0
-0.4
Bizoune 23 Balls 19 +0.5
-0.1
Week of 3/4100.0*Chance in playoffs100.0*Average seed
Punks 19 Crew 17 Out
-0.3
National 18 Loonies 12 +15.0
+0.1
Games Above .500
Chance Will Make Playoffs