@contrex,
YOU define what your business year is. Ony tax purposes define such a caendar sequence. This statement as presented by the author actuay states what the return was for that ast quarter and was not reay ooking at the entire business year, so it makes further sense in that it defines WHICH quarter
Point is , theres realy nothing wrong nor awkward about saying 4 Quarters because its a summary statement, thats al.