Financial responsibility for services to an individual whose county of residence has been determined under section 306 may be transferred from 1 county to another if both community mental health services programs, the individual or his or her plenary guardian, if applicable, and the department agree to the transfer. If a transfer is made pursuant to this section, the department shall transfer from the original county of residence to the new county of residence 100% of the cost of the services agreed upon by both community mental health services programs. County matching funds are not required for services to an individual whose county of residence has been transferred under this section.