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
River City 1 Inferno 2 +0.1
+0.2
Toronto Lynx 1 Fire-PDL 0 +0.1
+0.1
Forest City 4 River City 0 -0.1
Hamilton 1 Fire-PDL 4 +0.0
Hamilton 2 Forest City 4 +0.1
St. Louis 2 Thunder Bay 3 +0.0
Fire-PDL 0 Michigan 2 +0.0
Week of 7/8100.0*Chance in playoffs100.0*Average seed
Inferno 1 Forest City 2 Out
-0.2
Fire-PDL 2 Forest City 1 +0.8
-0.1
Toronto Lynx 3 River City 1 +0.5
Hamilton 2 River City 0 +0.3
-0.0
Inferno 2 Cincinnati 3 -1.7
Portland Phoenix 5 Boston 0 +0.5
Carolina 1 Northern Virginia 1 +0.5
Forest City 1 Toronto Lynx 2 -0.3
River City 2 Michigan 1 -0.2
Winnipeg 2 Springfield 1 +0.1
Thunder Bay 5 Kansas City 1 +0.0
Kansas City 3 St. Louis 1 -0.0
Week of 7/15100.0*Chance in playoffs100.0*Average seed
Inferno 0 Fire-PDL 1 -0.7
Toronto Lynx 2 Hamilton 0 +0.1
Points
Chance Will Make Playoffs