Within the Cost Breakdown, fees without an edit icon must be modified through the Configuration modal.
To begin editing taxes and fees, click the Configuration button.

The Fees tab will display a list of applicable fees for the contract.

To delete a fee, click on the trashcan icon.
To edit a fee, update the fee amount and click save.
To add a fee, click on the Add Fee dropdown and select the fee you want to add.
Note:
In order to add a fee, the location must have the fee set in the Fees and Taxes tab.
This tab does not allow the modification of the Calculation Method. If the Calculation Method has been changed in the location, then you must delete the fee from the contract and add it back to reflect the new Calculation Method.