How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Chance in playoffs100.0*Average seed
Bethlehem 1 Charlotte 2 Out
-0.9
Indy 3 Memphis 0 +0.0
Atlanta II 5 Bethlehem 2 -0.7
Loudoun 4 Saint Louis 3 -0.2
Pittsburgh 1 Atlanta II 1 -0.0
Swope Park 1 Ottawa 2 +0.0
Hartford 2 Swope Park 2 +0.0
Week of 10/11100.0*Chance in playoffs100.0*Average seed
Memphis 1 Charlotte 2 -0.1
Charleston 1 Loudoun 2 -0.1
Ottawa 1 Bethlehem 1 -0.1
Week of 10/18100.0*Chance in playoffs100.0*Average seed
Charleston 5 Bethlehem 1 -0.0
Points
Chance Will Make Playoffs