; (ii) adjusted by the percentage difference between the most recent regional price parity with respect to such State and the national price level, published by the Bureau of Economic Analysis of the Department of Commerce; and (iii) rounded to the nearest multiple of $0.05. (C) With respect to a locality, the regional minimum wage rate shall be equal to— (i) the amount to take effect under (a)(1)(B); (ii) adjusted by the percentage difference between the most recent regional price parity with respect to the metropolitan statistical area in which such locality is located, or if the locality is not located within a metropolitan statistical area, with respect to the State in which the locality is located, and the national price level, published by the Bureau of Economic Analysis of the Department of Commerce; and (iii) rounded to the nearest multiple of $0.05. (3) A locality may not opt for the regional minimum wage under paragraph (1)— (A) if such locality is located in a State with a law that prohibits any locality within such State from adopting a minimum wage rate that is higher than a specified rate; and (B) such specified rate is less than the regional minimum wage rate for such locality determined by the Secretary under paragraph (2). .