There is no definitive answer to this question as it depends on a number of factors, such as the size and scope of the project, the number of writers involved, the amount of editorial support required, and so on. However, many hybrid publishers charge between $500 and $5,000 for a full-service package, which includes editing, design, marketing, and distribution. Some publishers also offer à la carte services, so you can choose which services you need and only pay for those.