Let me explain, my final price of that product is 11,95€
So if i do 11,95 ÷ 1,23 % = 9.715€ <-- This is the correct formula
If i do 9.71€ + 23% it will give me 11,94€ (if i use 2 decimal numbers it will give me this price)
If i do 9,72 + 23% it will give me 11,96€, do you understand?
I came from opencart and it worked and already tested Prestashop and its also works.
So theres something wrong here. Why does it show the right price in my first photo and then when you enter the product and also in fastcheckout it shows 11,96€.