Business rebrand full pakage

A client wants to know how much it will be to rebrand their company - a full branding guidlines package?

Any idea how to charge this as a set price? Or is it best to charge per hour?

Would love some advice! Thanks!

Charge for the project-you can try and figure out how long it’ll take you and make Sure the price you give is worth it for that amount of time but better to not charge per hour in my opinion…

Charge set price and once they go over the number of revisions specified at the start of the project, charge hourly (for the revisions)