Transfer Company Apple Developer membership to Individual on iTunes App Store without repaying
Contrary to the transformation of an individual account to an organization account, there's no tool for initiating such a transformation on Apple's web site.

The only way to know if Apple will allow your to change your account type is to contact their support for clarification.

Note that it is always possible to transfer the app from the organization to a personal account for you by simply opening a new personal account (and thus paying again), and then using the ordinary tools for transferring apps between accounts.