; (B) by redesignating subparagraph (B) as subparagraph (C); and (C) by inserting after subparagraph (A) the following new subparagraph: (B) For purposes of determining under paragraph (1)(B) an individual’s surplus average indexed monthly earnings, the individual’s surplus earnings (described in paragraph (2)(B)(ii)) for a benefit computation year shall be deemed to be equal to the product of— (i) the individual’s surplus earnings for such year (as determined without regard to this subparagraph), and (ii) the quotient described in subparagraph (A)(ii). . (c) Effective date The amendments made by this section shall apply with respect to individuals who initially become eligible (within the meaning of section 215(a)(3)(B) of the Social Security Act) for old-age or disability insurance benefits under title II of the Social Security Act, or who die (before becoming eligible for such benefits), in any calendar year after 2017.