You can customize the "Base Price" and "Total Price" labels that appear on a project, since different projects may use different legal pricing language.
When you are creating a new project, if you expand the optional settings, you will see options to customize the the "Label for Starting Price" and "Label for Total Price."
You also have the option to check "Make default on future projects," if you would like these custom labels to appear on future projects that you add.
To edit an existing project's labels, go to the Project Setup page. There you can edit the same labels at any point in time.