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 +4.9
+0.4
Ottawa 4 Worcester 0 -2.9
-0.3
Reading 4 Brooklyn 0 -1.2
-0.1
Maryland 2 Carolina 4 +1.2
-0.1
Seacoast 1 Boston 1 +0.8
+0.0
Western Mass 2 Azul 0 -0.6
-0.0
West Virginia 1 Palmetto 1 +0.4
+0.0
NJ Rangers 3 Baltimore 2 -0.3
Ottawa 2 Seacoast 0 -0.2
-0.2
Ocean City 4 Bermuda 0 -0.1
Worcester 6 Boston 0 -0.1
Nashville 0 West Virginia 0 +0.0
Week of 7/8100.0*Chance in playoffs100.0*Average seed
Vermont 2 Western Mass 1 In
+0.1
Ottawa 5 Portland Phoenix 1 -2.7
-0.9
Ottawa 1 Azul 0 -0.3
Ottawa 1 Western Mass 1 -0.3
Virginia Beach 2 West Virginia 0 -0.2
Seacoast 0 Portland Phoenix 0 -0.1
Reading 2 Ocean City 0 -0.1
Week of 7/15None
Points
Chance Will Make Playoffs