I am having some trouble with a particular problem regarding area % in Arc.
I have 5 layers, each representing a different data quality, A1, A2, B, C, Overall extent. Each layer has dozens of shapefiles.
I need to calculate the area of each data quality, as a percentage of the overall area (UK territorial sea limits).
The problem is, I need to discount any lower quality layer shapefiles (e.g. B) that sits beneath an area of higher quality layer shapefiles (e.g. A1).
The problem might be better described by asking: in the top image (all layers ticked on) what is the percentage coverage of each VISIBLE layer?