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
Reading 4 Brooklyn 0 -0.5
-1.6
Ottawa 4 Worcester 0 -0.1
+0.1
Maryland 2 Carolina 4 +0.1
NJ Rangers 3 Baltimore 2 -0.0
West Virginia 1 Palmetto 1 +0.0
Brooklyn 1 Westchester 0 +1.7
Baltimore 3 Express 2 -0.1
Maryland 1 Northern Virginia 0 +0.1
Bermuda 3 Long Island 1 +0.1
Virginia Beach 1 SW Virginia 3 -0.0
Week of 7/8100.0*Chance in playoffs100.0*Average seed
Spartans 0 NJ Rangers 1 +0.5
Carolina 1 Northern Virginia 1 +0.5
Seacoast 0 Worcester 2 +0.4
Vermont 2 Azul 4 +0.3
Baltimore 2 Brooklyn 2 +0.3
Bermuda 2 Baltimore 1 +0.1
Long Island 5 Brooklyn 3 -0.1
Ottawa 1 Azul 0 +0.1
Maryland 7 Fredericksburg 1 +0.1
Nashville 0 Palmetto 0 +0.1
Week of 7/15100.0*Chance in playoffs100.0*Average seed
Ocean City 1 Brooklyn 0 -1.2
Baltimore 2 Long Island 1 -0.4
Nashville 5 Fredericksburg 0 +0.3
Palmetto 4 Northern Virginia 0 -0.1
Points
Chance Will Make Playoffs