How is online advertising charged?

Question

contextual advertising

Greetings. I have a customer who wants a website and advertising. We agreed on the first account, but nothing comes to mind with advertising. How can I charge for setting up and launching targeted advertising? Describe, please, from personal experience, so to speak, life hacks. Of particular difficulty is the dialogue with the customer "far" from these cases

Answer 1

5-20 percent of the advertising budget that the customer is willing to invest. this is how advertising is charged