How are these numbers calculated?

Big Games

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

Week of 7/1100.0*Chance in playoffs100.0*Average seed
Forest City 4 River City 0 -26.0
-0.5
River City 1 Inferno 2 -8.9
-0.2
Hamilton 2 Forest City 4 -2.9
-0.1
Toronto Lynx 1 Fire-PDL 0 +0.8
Fire-PDL 0 Michigan 2 +0.5
Hamilton 1 Fire-PDL 4 -0.4
Michigan 5 Cincinnati 1 *+0.1
Week of 7/8100.0*Chance in playoffs100.0*Average seed
Inferno 1 Forest City 2 -18.5
-0.2
Toronto Lynx 3 River City 1 -18.4
-0.3
Hamilton 2 River City 0 -15.2
-0.6
Fire-PDL 2 Forest City 1 +15.1
+0.2
Forest City 1 Toronto Lynx 2 +9.7
+0.1
River City 2 Michigan 1 +9.7
+1.0
El Paso 1 Laredo 4 *+0.2
Winnipeg 2 Springfield 1 +0.2
Thunder Bay 5 Kansas City 1 +0.2
Inferno 2 Cincinnati 3 -0.1
Week of 7/15100.0*Chance in playoffs100.0*Average seed
Michigan 4 River City 0 Out
-0.8

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Make Playoffs