How are these numbers calculated?

Big Games

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

Week of 4/7100.0*Chance wins title100.0*Promoted100.0*Average seed
Stocksbridge 1 Chester 2 No
Burscough 1 Bradford PA 1 *-0.1
-0.2
Northwich 1 Hednesford Town 2 -0.1
Hednesford Town 2 Kendal Town 3 *+0.1
Bradford PA 0 Rushall Olympic 2 -0.3
Kendal Town 1 Chorley 2 -0.1
FC United 1 Buxton 2 +0.1
Chorley 3 Chasetown 2 -0.0
Week of 4/14100.0*Chance wins title100.0*Promoted100.0*Average seed
Bradford PA 3 Frickley 0 +0.2
+0.2
Matlock Town 2 FC United 1 +0.2
Northwich 1 Bradford PA 0 -0.2
Nantwich Town 1 Chorley 0 +0.2
Chorley 0 Chester 2 +0.1
Week of 4/21100.0*Chance wins title100.0*Promoted100.0*Average seed
Chorley 3 Bradford PA 1 -0.6

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Win Championship