The term "professional personnel" or "professional services," as used herein, shall include the services of a duly licensed engineer, surveyor, planner, attorney, realtor, appraiser or other expert who would provide professional services or advise to insure an application complies with the standards set forth in this chapter and other experts whose testimony is in an area testified to be any of the applicant's experts. "Professional personnel" shall include personnel retained by the Township pursuant to a professional services contract, as well as Township employees (i.e., personnel whose services are provided by a Township employee). The charge shall not exceed 200% of the sum of the products resulting from multiplying (1) the hourly base salary, which is established annually by ordinance, of each of the professionals by (2) the number of hours spent by the respective professionals upon review of the application or inspection of the developer's improvements.