How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 9/30100.0*Chance in playoffs100.0*Average seed
New York 2 Pittsburgh 0 +16.2
+0.7
Tampa Bay 3 New York 2 -12.4
-0.5
Richmond 0 Orlando 1 -7.0
-0.2
Harrisburg 2 St Louis 0 +1.0
+0.0
Tampa Bay 1 Bethlehem 1 -0.1
+0.0
Rochester 0 Louisville 0 +0.0
Week of 10/7100.0*Chance in playoffs100.0*Average seed
Orlando 5 New York 6 +49.8
+1.1
Orlando 0 Tampa Bay 2 In
+0.2
Ottawa 4 Cincinnati 0 +3.7
+0.2
Rochester 1 Bethlehem 0 +1.6
+0.1
Pittsburgh 0 Rochester 2 -1.2
-0.1
Week of 10/14100.0*Chance in playoffs100.0*Average seed
Bethlehem 1 St Louis 1 +0.5
Toronto 3 Cincinnati 4 -0.4
Rochester 2 New York 1 -0.2
Points
Chance Will Make Playoffs