How are these numbers calculated?

Big Games

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

Week of 9/9100.0*Chance in playoffs100.0*Average seed
Charlotte 4 Pittsburgh 0 -0.2
-0.3
Pittsburgh 0 Cincinnati 0 Out
+0.0
Toronto 2 Orlando 1 +0.1
-0.2
Charleston 2 Bethlehem 1 +0.0
Week of 9/17100.0*Chance in playoffs100.0*Average seed
Bethlehem 1 Pittsburgh 1 -0.2
New York 4 Montreal 0 +0.1
Harrisburg 1 Wilmington 1 -0.0
Week of 9/24100.0*Chance in playoffs100.0*Average seed
Pittsburgh 0 Cincinnati 1 -0.5
Montreal 1 Harrisburg 3 +0.2
Rochester 1 Toronto 0 +0.0
Points
Chance Will Make Playoffs