[Koha-bugs] [Bug 2865] Acquisitions: GST not calculating correctly.

[bugzilla-daemon at pippin.metavore.com]

http://bugs.koha.org/cgi-bin/bugzilla/show_bug.cgi?id=2865





------- Comment #2 from jransom at library.org.nz  2008-12-30 17:26 -------
I have carried out some testing on adding orders in acquisitions and this bug
is not quite as black and white as I first thought. Attached spreadsheet gives
the details of my testing, results and conclusions. Summarized below:

METHOD:
I set up 6 vendors with different profile combinations: some with list price
including GST and somne without, some with discount and some without, some with
list prices entered in $USD and some in $NZD.

I then ordered single copies of books from the suppliers, and 2 copies of a
different book from the suppliers. 

CONCLUSIONS:

1. LIST PRICE DOES NOT INCLUDE GST - WITH OR WITHOUT A DISCOUNT
Where a Vendor profile has been set with list (ordering) price as not including
GST the budgeted price and replacement costs are calculated perfectly,
regardless of whether a discount applies or not, and regardless of whether 1 or
multiles copies are ordered.

2.LIST PRICE INCLUDES GST AND A DISCOUNT APPLIES
Where the Vendor profile has been set with list or ordering price as including
GST, and a discount applies, then Koha is correctly removing the GST, correctly
removing the discount and then INCORRECTLY adding GST back on again. I think
this is the scenario that led me to post this bug. Ordering 1 or multiple
copies, and various discounts, are handled fine.

3. LIST PRICE INCLUDES GST AND NO DISCOUNT APPLIES
Where the Vendor profile has been set with list or ordering price as including
GST but NO discount, Koha is adding GST on top of the both the list and the RRP
price. Ordering 1 or multiple copies makes no difference.

4. LIST PRICE IN FOREIGN CURRENCY
Foreign currency conversions are a total mess and I havn't yet figured out what
happened yet. Will bug this separately.




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