the gross receipts of such employer for any applicable calendar year were less than 50 percent the gross receipts of such employer for calendar year 2019, or (ii) the average gross receipts of such employer for all applicable calendar years were less than 70 percent the gross receipts of such employer for the calendar year 2019. (C) Applicable calendar year For purposes of this paragraph, the term applicable calendar year means any of the following: (i) Calendar year 2020. (ii) Calendar year 2021. (D) Special rule for employers not in existence for entirety of 2019 In the case of any employer that was in existence before January 1, 2020, but not in existence on January 1, 2019, the amount of gross receipts taken into account for any applicable calendar year shall be the amount of such gross receipts (determined without regard to this clause) multiplied by the ratio of— (i) the number of days during 2019 during which such employer was in existence, to (ii) 365. (E) Special rule for employers not in existence before 2020 In the case of any employer that was not in existence before January 1, 2020, in applying this paragraph— (i) the amount of gross receipts for calendar year 2019 shall be equal to the product of— (I) the amount of gross receipts for the period beginning on the date the employer was established and ending before March 14, 2020, and (II) the ratio of 366 to the number of days in the period described in subclause (I), and (ii) the amount of gross receipts for calendar year 2020 shall be equal to the product of— (I) the amount of gross receipts for the period beginning after March 13, 2020, and ending on December 31, 2020, and (II) the ratio of 366 to the number of days in the period described in subclause (I). (3) Wages (A) In general The term wages has the meaning given such term under section 3121(a), determined without regard to paragraph (1) thereof. (B) Exception Such term shall not include any wages taken into account under sections 41, 45A, 45P, 45S, 51, and 1396. (4) Other terms Any term used