amount of payments made to a participating candidate with respect to an election cycle under this title may not exceed 50 percent (or, in the case of a candidate who exercises the option described in section 521(a)(2) to accept greater restrictions on the permissible sources of contributions and expenditures, 100 percent) of the average of the 20 greatest amounts of disbursements made by the authorized committees of any winning candidate for the office of Representative in, or Delegate or Resident Commissioner to, the Congress during the most recent election cycle, rounded to the nearest $100,000. 502. Procedures for making payments (a) In general The Commission shall make a payment under section 501 to a candidate who is certified as a participating candidate upon receipt from the candidate of a request for a payment which includes— (1) a statement of the number and amount of qualified small dollar contributions received by the candidate since the most recent payment made to the candidate under this title during the election cycle