For the purpose of calculating the amount of any general abatement, primary residential abatement or residential rental abatement for the current year, the amount of the tax levy that would have resulted for the immediately preceding year without the application of any other tax abatements or exemptions must be compared to the tax levy that would result for the current year without the application of any other tax abatements or exemptions.
Nev. Admin. Code § 361.608
NRS 360.090, 361.4722, 361.4723, 361.4724