The symbols which designate each of the several combining D districts are shown in Column 1 of Table 17.24.040. In each such designated district provided the other district requirements are met, the maximum number of dwelling units permitted shall be calculated by dividing the area in square feet of the building site by the figure on the same line in Column 3 of said table showing the required number of square feet per dwelling unit, or, in the case of a D-3 district, by the number specified in the amendment creating the district. In making the calculation, fractions shall be disregarded, except that where such calculation results in an allowance of more than seven units, a fraction greater than three-fourths shall be adjusted to the next higher whole number.

(Prior gen. code § 8-41.3)