Bug (#6653)
In price.lib.php (htdocs\core\lib\price.lib.php), the function calcul_price_total() is defined (line 76). The 7th parameter is **$remise_percent_global**.
However, this function is called on facture.class.php (htdocs\compta\facture\class\facture.class.php) and the 7th parameter used is **$line->product_type**. Consequently, invoice situation is correct when user sells a product (product_type = 0) and is wrong when user sells a service (product_type = 1).
Effectively, in the latter case, the total situation invoice will be wrong by 1%.
In order to correct this, we can add 0 as the 7th parameter and move **$line->product_type** to the 10th parameter.
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