How are these numbers calculated?

Big Games

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

Week of 9/29100.0*Chance in playoffs100.0*Average seed
Central Valley 1 Greenville 2 In
+0.4
Richmond 0 South Georgia 1 -1.7
Greenville 0 Northern Colorado 2 -1.4
-0.3
Charlotte USL 1 Knoxville 1 +0.8
+0.0
Madison 2 Lexington 2 +0.1
+0.1
Omaha 4 Charlotte USL 1 +0.1
Week of 10/6100.0*Chance in playoffs100.0*Average seed
Chattanooga 2 Greenville 2 -0.2
Northern Colorado 2 Madison 0 +0.1
Week of 10/14100.0*Chance in playoffs100.0*Average seed
Charlotte USL 1 South Georgia 1 +0.1
Greenville 1 Lexington 1 -0.0
Points
Chance Will Make Playoffs