Not able to apply Percentage (Profit Margin) on Sell Shipment from Buy Shipment

Dear All,

Could you please assist me on the below scenario and how to setup the sell side rates.

Customer 'A' buy the service from Company 'X' for its internal customer 'Y' for 100 USD with handling charges (Accessorial) of 25 USD. Using the Buy Shipment - Invoice, customer 'A' pays 125 USD to Company 'X'.

Now Customer 'A', want to charge thier internal customer 'Y' by having 10% Profit margin.

Proposed Solution:

Using the Sell Shipment - Bill, Customer 'A' will charge Customer 'Y'.

Issue: I am not able to calculate 10% profit margin on sell shipment base cost and accessorial charges copied from buy shipment.