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
Vermont 2 Portland Phoenix 4 +1.9
+0.2
Ottawa 4 Worcester 0 -1.4
-0.2
Seacoast 1 Boston 1 +0.4
West Virginia 1 Palmetto 1 +0.4
Maryland 2 Carolina 4 +0.3
-0.1
Reading 4 Brooklyn 0 -0.3
Western Mass 2 Azul 0 -0.2
Bermuda 3 Long Island 1 -0.1
Ottawa 2 Seacoast 0 -0.1
-0.1
Baltimore 3 Express 2 -0.1
River City 1 Inferno 2 +0.1
Maryland 1 Northern Virginia 0 -0.1
NJ Rangers 4 Spartans 0 -0.1
Ocean City 4 Bermuda 0 -0.0
Week of 7/8100.0*Chance in playoffs100.0*Average seed
Ottawa 5 Portland Phoenix 1 -0.6
-0.5
Vermont 2 Western Mass 1 In
Ottawa 1 Azul 0 -0.3
Seacoast 0 Portland Phoenix 0 -0.2
Ottawa 1 Western Mass 1 -0.1
Virginia Beach 2 West Virginia 0 -0.1
Reading 2 Ocean City 0 -0.0
Week of 7/15None
Points
Chance Will Make Playoffs