Every person doing business within the State and engaging in the business of selling such articles or commodities as are named in this article shall, for the privilege of carrying on such business, and every person, firm, corporation, club or association within the State importing, receiving or acquiring from without the State or from any other source any such articles for use or consumption within the State shall for the privilege of so doing be subject to the payment of a license tax which shall be measured by and graduated in accordance with the volume of sales or acquisitions of such person within the State.
S.C. Code § 12-21-610