Ind. Code § 4-33-12-1.5
(b) Subject to subsection (c), the amount of supplemental wagering tax imposed for a particular day is determined by multiplying the riverboat's adjusted gross receipts for that day by the quotient of:
(c) The quotient used under subsection (b) to determine the supplemental wagering tax liability of a licensed owner subject to subsection (b) may not exceed the following when expressed as a percentage:
As added by P.L.212-2018(ss), SEC.5.