Tax calculation problem

[davidmtl]

Hi All,

 

I'm experiencing an issue with my Prestashop website where a product is displayed with the wrong price in the shopping cart, due to an error on how the taxes get calculated.

 

Per example, the erroneous price is shown in the cart with a 32,2% tax calculation, when it should only be 7,49%. What is strange is the calculation gets messed up only after the customer logs in or creates an account.

 

I've attached screenshots - anybody have seen this issue before ?

 

Many thanks