Hello, thanks for the fast reply. I just installed the update and i will check the profit margin issue.
Now for the taxes. Every product has a tax class, so you can substract the taxes with the following operation: %cost% / (1+ %tax rate%) = cost(excl tax)
example
tax class: basic – tax rate: 24%
cost(incl tax) from ATUM: 10€
10€/ (1+24%)=8,064 €