The rate of the tax imposed by GHMC 3.22.010 shall be one-half of one percent of the selling price or value of the article used, as the case may be; provided, however, that during such period as there is in effect a sales tax or use tax imposed by Pierce County under Section 17(2), Chapter 49, Laws of 1982, First Extraordinary Session at a rate equal to or greater than the rate imposed by this section, the county shall receive 15 percent of the tax imposed by GHMC 3.22.010; provided, further, that during such period as there is in effect a sales tax or use tax imposed by Pierce County under Section 17(2), Chapter 49, Laws of 1982, First Extraordinary Session at a rate which is less than the rate imposed by this section, the county shall receive from the tax imposed by GHMC 3.22.010 that amount of revenues equal to 15 percent of the rate of the tax imposed by the county under Section 17(2), Chapter 49, Laws of 1982, First Extraordinary Session. (Ord. 399 § 2, 1982).