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*Average seed
Nantwich Town 3 Frickley 2 -0.1
Stocksbridge 0 AFC Fylde 2 +0.1
Stocksbridge 5 Nantwich Town 2 -0.1
AFC Fylde 3 Frickley 2 -0.1
Matlock Town 3 Kendal Town 0 -0.1
Witton Albion 3 Matlock Town 0 +0.0
Week of 4/27100.0*Average seed
Frickley 0 Witton Albion 2 -0.1
Hednesford Town 4 Stocksbridge 1 +0.1
Week of 5/4100.0*Average seed
Stocksbridge 0 Grantham Town 3 +0.1
FC United 3 Frickley 0 -0.1
Points
Chance Will Win Championship