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TAX Calculation - Serious problem on approximation


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Hi everybody.

 

I've got a problem on PS 1.6.0.9 after about one mounth of customizzazions I found out a problem in TAX calculations.

 

I have used the TAX calculations for Switzerland, with the lowest rate (2,5%).

There is something wrong in the calculation algorithm. (See the attached picture. Sorry, my backoffice is in italian)

Final price: 6.00

TAX: 2.5%

Price TAX excluded: 5.853659 ????????????????????????????????

 

The right price would be: 5.85 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

It also wrong the TAX calculation in the shopping chart and the problem is getting bigger and bigger wth multiple items.

 

I tried all three approximation method offered by the system, but the result is everytime wrong...

 

Some hints on how to solve that problem?

 

Thank you in advance!

 

 

[uPDATE - Same question on StackOverflow - http://stackoverflow.com/questions/28233342/prestashop-1-6-tax-calculation-approximation-issue]

post-917709-0-67939500-1422533280_thumb.png

Edited by teodoro (see edit history)
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