(1) The allowed number of dwelling units or lots (base density) shall be computed by multiplying the site area specified in CMC 18.30.080 by the applicable residential base density number;

(2) The maximum density (unit or lot) limits shall be computed by adding the bonus or transfer units authorized by Chapter 18.90 or 18.95 CMC to the base units computed under subsection (1) of this section;

(3) The allowed floor area, which excludes structured or underground parking areas and areas housing mechanical equipment, shall be computed by applying the floor-to-lot area ratio to the project site area specified in CMC 18.30.080;

(4) If calculations result in a fraction, the fraction shall be rounded to the nearest whole number as follows: