W. Va. Code § 29-22B-320

"Net terminal income" means the portion of gross terminal income collected by the commission from the permittees determined to be net terminal income as calculated under subsection 22B-1408(a) of this article. "Gross terminal income" means the total amount of cash inserted into video lottery terminals operated by a licensee, minus the total value of game credits which are cleared from the video lottery terminals in exchange for winning redemption tickets. A licensee may not deduct costs or expenses related to the operation of video lottery games from net terminal income.