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
Baltimore 3 Express 2 -19.5
-0.9
Westchester 1 Reading 5 -7.5
-0.2
Express 4 Spartans 2 +5.5
+0.2
Ottawa 4 Worcester 0 -0.9
Reading 4 Brooklyn 0 -0.9
-0.1
NJ Rangers 3 Baltimore 2 -0.6
West Virginia 1 Palmetto 1 +0.6
+0.0
Mississippi 1 Tampa 0 -0.5
Maryland 2 Carolina 4 +0.5
Ocean City 2 NJ Rangers 1 -0.3
-0.0
Hamilton 2 Forest City 4 +0.3
Crossfire 0 Sounders-U23 1 +0.3
Kitsap 2 North Sound 1 -0.2
River City 1 Inferno 2 -0.2
Ocean City 4 Bermuda 0 -0.2
-0.1
Kansas City 5 St. Louis 1 +0.2
Nashville 0 West Virginia 0 *-0.1
Laredo 3 New Orleans 1 *-0.1
Jax 1 Panama City 3 +0.1
Ft. Lauderdale 0 Ocala 3 +0.1
Bermuda 3 Long Island 1 +0.1
Week of 7/8100.0*Chance in playoffs100.0*Average seed
Reading 2 Ocean City 0 -16.7
-0.5
Express 1 Reading 1 -11.2
-0.2
Long Island 0 Express 2 +7.8
+1.0
Baltimore 2 Brooklyn 2 +2.8
Vermont 2 Azul 4 +2.8
Ottawa 1 Western Mass 1 +2.8
Spartans 0 NJ Rangers 1 +2.8
Winnipeg 2 Springfield 1 +2.8
El Paso 1 Laredo 4 +2.8
West-Texas 2 Texas 0 +2.8
Thunder Bay 3 Kansas City 1 +2.8
Fresno 3 Southern Cal 1 +2.8
New Orleans 1 Austin 0 +2.8
Orange County 5 BYU 1 +2.7
Portland Phoenix 5 Boston 0 +2.7
Virginia Beach 2 West Virginia 0 +2.7
Carolina 1 Northern Virginia 1 +2.6
Seacoast 0 Worcester 2 +2.6
Ocean City 5 Westchester 1 *-0.1
Week of 7/15100.0*Chance in playoffs100.0*Average seed
Spartans 1 Reading 2 Out
-0.2

* 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