In computing the number of parking spaces required by this Code, the following rules shall apply:
(a) Floor Area. Where floor area is designated as the standard for determining parking space requirements, gross floor area shall be used for all land uses, unless specifically noted otherwise.
(b) Seats. Where seating capacity is the standard for determining parking spaces, the capacity shall mean the number of seating units installed or indicated, or one seat for each 24 lineal inches of benches or pews, or when fixed seats are not indicated, the capacity shall be determined as being one seat for each 20 square feet of gross floor area of the assembly room(s).
(c) Employees. Where employees are the standard for determining parking space requirements, employees shall mean the maximum number of employees on the premises at one (1) time or on any two (2) successive shifts, whichever is greater.
(d) Fractional Numbers. Where the computation results in a fractional unit, one additional off-street parking space shall be provided.
(e) Parking for Mixed Uses. Where a building or group of buildings contains two (2) or more uses, operating normally during the same hours, the number of parking spaces for each use shall be computed separately and the total spaces provided shall not be less than the sum of the spaces required for each use, except as otherwise provided for in this Chapter.