Extend Item Price in Project /Freight Custom Charges / Addiontal Costs

In our Project, we only one one field for unit cost and one field for unit price.

Then there is a list of labor types

Would be nice to have another Panel for additional costs and markup tracking.

Here we could have options in list format panel as labor type panel, like Shipping Cost or Shipping Cost %age

Custom Cost or Custom Cost %age

Commission Paid: Cost, if included in the price, price if markup added on the price

I think, like labor types, Additional Cost types will also have a cost and price, but we can choose to keep price 0 or same as cost or greater than cost if needed.

And then when we review the full estimated price it will show us the total cost and total price based on these additional calculations.

The question would be, how will we manage the field in a report? Will the unit price and unit cost be the same in our current reports and we will use another field, or will we update these additions to the total cost and installation price?