Re: [mv] salestax included in total

[Frank Miedreich <miedreich@acm.org>]

>******    message to minivend-users from "Detlev Krauss"
><dkrauss@entire-systems.com>     ******
>
>Hi all!
>
>How is it possible to calculate the sales tax included in total instead of
>adding the sales tax to a netto subtotal? The single product prices are
>total values (including sales tax).
>
>Detlev
>


Der Rechnungsbetrag von [total-cost] enth&auml;lt die gesetzliche MwSt. von
16% in H&ouml;he von
[currency][calc][total-cost noformat=1]/1.16*0.16[/calc][/currency]

Addtl. info for the rest of the list:

I am not using sales-tax in the example, as I am currently thinking about
adjusting the minivend taxing scheme to German (and I think many European)
tax schemes. (This would probably work similar to the shipping calculations
and may never be finished.)

In Germany the VAT is based on product category, with books being taxed at
7%, almost everything else at 16%. The same rates also apply to exports to
other EU countries, but not to exports to other countries. The above will
obviously fail (as in produce wrong results) with combinations of books and
other products. The Minivend tax system is difficult to use in Germany, as
it is illegal to use only the net price in end custumer sales. While you
may show the net price, the price including taxes has to be the one most
prominently displayed.

This is often done wrong (e.g. http://www.apple.com/germanstore/), but I
have not yet found a satisfying solution.

Cheers Frank

--
Frank Miedreich
Max-Planck-Institut fuer psychologische  Forschung
Leopoldstr. 24   80802 Muenchen   +49 89 38602-237