new gtlds What makes the final retail price of a domain name ?

I am sometimes surprised that most of domainers don't know what makes the final retail price of a domain name.

So for those who are ignoring the details, here is the full formula in 2019 :

Domain Name Retail Price = ICANN Registrar Fees + ICANN Registry Fees + Registrar Fees (Back End + Escrow + Monitoring) + Registry Fees (Back End + Escrow + Monitoring)

Without counting marketing and anyone margin of course