How are these numbers calculated?

Big Games

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

Week of 4/20100.0*Promoted100.0*Average seed
Buxton 2 Rushall Olympic 0 +0.6
+0.6
AFC Fylde 3 Frickley 2 -0.2
Witton Albion 3 Matlock Town 0 -0.2
AFC Fylde 0 Stafford 1 +0.1
FC United 1 Worksop Town 0 -0.1
+0.1
Stocksbridge 0 AFC Fylde 2 No
Chorley 1 Ashton United 1 +0.1
Marine 1 North Ferriby 3 +0.0
Week of 4/27100.0*Promoted100.0*Average seed
Kendal Town 1 Buxton 0 -0.6
Buxton 3 Nantwich Town 1 +0.4
AFC Fylde 1 Rushall Olympic 3 -0.2
Rushall Olympic 0 FC United 1 +0.2
North Ferriby 1 Chorley 0 +0.1
Worksop Town 0 AFC Fylde 0 +0.0
Week of 5/4100.0*Promoted100.0*Average seed
Worksop Town 2 Buxton 0 -0.3
Witton Albion 2 Rushall Olympic 0 +0.2
Chorley 2 Eastwood Town 1 -0.1
Points
Chance Will Win Championship