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*Average seed
Bradford PA 0 Rushall Olympic 2 +1.1
Rushall Olympic 1 North Ferriby 1 -0.2
Hednesford Town 2 Kendal Town 3 -0.2
North Ferriby 1 Whitby Town 0 -0.2
Whitby Town 2 Stafford 1 +0.1
Kendal Town 1 Chorley 2 +0.1
Ashton United 1 FC United 0 -0.1
Buxton 2 Matlock Town 1 +0.1
Stafford 1 Nantwich Town 1 +0.1
Nantwich Town 0 Frickley 0 +0.1
Worksop Town 3 Ashton United 3 +0.1
Buxton 3 Stafford 1 +0.1
Frickley 2 Worksop Town 1 +0.0
Matlock Town 1 Marine 1 +0.0
Week of 4/14100.0*Average seed
Marine 0 Rushall Olympic 3 +0.6
Nantwich Town 1 Chorley 0 -0.2
Stocksbridge 1 Nantwich Town 5 -0.2
Rushall Olympic 2 Frickley 2 -0.1
Chasetown 2 North Ferriby 2 +0.1
Matlock Town 2 FC United 1 -0.1
Kendal Town 1 Ashton United 3 +0.0
Week of 4/21100.0*Average seed
Rushall Olympic 1 Matlock Town 0 +0.3
North Ferriby 3 Nantwich Town 1 +0.3
Points
Chance Will Win Championship