with respect to an election for such office, the candidate shall be entitled to payments under this title, to be used only for authorized expenditures in connection with the election. (b) Amount of payment (1) Match of qualified contributions Subject to paragraph (2), the amount of a payment made to a participating candidate under this title shall be equal to 600 percent of the amount of qualified contributions received by the candidate since the most recent payment made to the candidate under this title with respect to the election, as set forth— (A) in the case of the first payment made to the candidate with respect to the election, in the report filed under section 511(a)(2)