Hello guys, 

DO you know how to calculate the correct margin/net for an order. I want to create a field, or maybe it can be done in another way. Which will show the order amount minus the cost price and all expenses that we incur during order processing (such as delivery to the client, which we pay for, delivery of goods to the fulfillment center, bank commission, promotion costs on certain sites, pa). Basic functionality does not allow this, such as order margin or re-invoice of expenses to the client. 

I would like something like re-invoice to the customer, but so that this amount is not added to the order amount, but subtracted and shown in the margin.