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
Harrisburg 2 St Louis 0 +0.2
+0.9
Richmond 0 Orlando 1 Out
New York 2 Pittsburgh 0 -0.0
+0.1
Tampa Bay 1 Bethlehem 1 -0.0
Ottawa 1 Charleston 1 +0.1
Week of 10/7100.0*Chance in playoffs100.0*Average seed
Charleston 4 Harrisburg 0 -0.6
Ottawa 4 Cincinnati 0 -0.3
Pittsburgh 0 Rochester 2 +0.2
St Louis 0 Richmond 1 +0.2
Week of 10/14100.0*Chance in playoffs100.0*Average seed
Bethlehem 1 St Louis 1 +0.4
Points
Chance Will Make Playoffs