; and (ii) the term prior fiscal year means the most recent fiscal year before the current fiscal year for which a State, territory, or commonwealth received a grant under the program. (B) General limitation on reductions in grants Subject to subparagraphs (C) and (D), the Administrator may not award a grant to a State, territory, or commonwealth under the program for the current fiscal year in an amount that is less than 80 percent of the amount received by the State, territory, or commonwealth under a grant under the program for the prior fiscal year. (C) Potential additional adjustments (i) Exception for reduction in appropriations Subject to subparagraph (D), if the total amount appropriated for the program for the current fiscal year is less than the amount appropriated for the program for the prior fiscal year, for purposes of applying subparagraph (B), the Administrator shall substitute for the amount received by the State, territory, or commonwealth under a grant under the program for the prior fiscal year the product obtained by multiplying— (I) subject to clause (ii) of this subparagraph, the amount received by the State, territory, or commonwealth under a grant under the program for the prior fiscal year