Architect's glossary
Fees
Remuneration of a liberal profession. Can be freely defined (lawyer's fees for example), but certain fees are regulated by regulations (percentage of work for an architect)

In regards to:
In order to calculate your fees, by amount of work, costs or deliverables, you can use OOTI, management software for architects. You will then be able to directly create a fee proposal to send to your client.
For more information you can visit: https://www.ooti.co/