Total taxes including incorrect

[freuxbang]

Hi, I'm having serious problems with prestashop.

Not correctly calculate me the total price including TAX.

 

I show the price of an invoice from an order already made.

 

Total tax exl: € 254.28

Total tax 10%: € 25.41

total tax incl: € 279.69

 

Doing a manual calculation, by adding all the prices of the products in your order the tax is 254.28.

If we apply the tax of 10% is not 25.41 but 25.43

 

Tax at 10%

Rounding modes: classic

 

Prestashop 1.5.6.0 version

 

You should go look for the function that calculates the total price plus tax and saves it in ps_orders table but can not find it. I'm curious to know that calculation does.