When calculating your margins, we understand your business may include internal costs.
It may be, for example, production costs or internal commission to be paid back to the staff member.
To add an internal cost estimate or invoice and calculate the margin, unfold the flap margins and locate the Internal costs section.
Then click Add Entry. In the next window, enter the details of the cost:
The amount appears in the margins summary and you can find the details in your panel for margins: