(b) In determining the value of the real property interest of a timeshare estate or use, consideration shall be given to the following factors which are unique to such interests:
(1) The fact that the timeshare estate or use is marketed in increments of time.
(2) The season of the year during which the owner is entitled to the right to use or possession of the property.
...
(h) The assessor may determine the value of the timeshare appraisal unit by the following method:
(1) Determine the full value of resort properties, condominiums, cooperatives, or other properties not marketed in increments of time but which are comparable to the subject property in terms of size, type, and location. Divide such full value by a unit of time equal to the timeshare interest being valued.
(2) Add to or subtract from the non-timeshare value quotient determined in (1), an amount necessary to reflect any increase or decrease in such value attributable to the fact that the subject property is marketed in increments of time and, if applicable, for a particular season.