If a contract for the sale of gold or silver extracted by a business entity in this State establishes the sales price of the gold or silver in a currency other than the United States dollar, in calculating the amount of the gross revenue realized from the sale of the gold or silver, the business entity must convert the sales price into United States dollars using the average exchange rate for the taxable year, as determined using Forex Exchange.
Nev. Admin. Code § 360.Sec. 19