Gretings from Norfolk (UK)

I have just found this group, so may be asking a question previously
answered.

I am trying to set up n excel spread sheet for a friend for her sale of
books on Amazon.

Does anybody know the way Amazon calculate their fees and VAT - I know the
percentages and deducted amounts, but every time I try I get errors between
their figures and my calculated values of + or - 1 penny.
I have tried various rounding techniques, but to no avail

Any help would be appreciated.
--
Richard.

"I have yet to see any problem, however complicated, which when looked at in
the right way, did not become still more complicated"
Poul Anderson