Rounding errors

[adrzei]

Hello,

With the last annual financial statement we found some rounding errors in our outgoing invoices (15-20%).

Example (negative invoice): 

 

Correct calculation: -0,1103 * 1,19 = -0,1313 = -0,13

 

Example (positive invoice):

 

Correct calculation: 16,18 * 1,19 = 19,2542 = 19,25

 

How are these values calculated?

[adrzei]

Push?!

[Blesta Addons]

  On 11/29/2017 at 8:23 AM, adrzei said:

16,18 * 1,19 = 19,2542 = 19,25

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i think this happen with the currency format converter, so 19,2542 it will be 19,25 after a currency format . and the currency fomat is not doing any rounding , is only a decimal extract and return .

 

[adrzei]

  On 12/5/2017 at 2:57 PM, Blesta Addons said:

i think this happen with the currency format converter, so 19,2542 it will be 19,25 after a currency format . and the currency fomat is not doing any rounding , is only a decimal extract and return .

 

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That makes even less sense. If the values are truncated, they should have been correct in my examples. Instead, it was rounded, but wrong.

[Blesta Addons]

  On 12/5/2017 at 3:02 PM, adrzei said:

That makes even less sense. If the values are truncated, they should have been correct in my examples. Instead, it was rounded, but wrong.

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so my analysis is wrong, in first i have thinked it worked that way, a fter a small look in the code, i found the function return two value; the "amount" with the real somme and "amount_formated" that is converted and formatted to the currency. and it appear is rounded.