An international bank issues its Traveler credit cards worldwide. When a customer makes a purchase using a Traveler card in currency different from the customer's home currency, the bank converts the purchase price at the daily foreign exchange rate and then charges a 4% fee on the converted cost.
Sara lives in the United States, but is on vacation in India. She used her Traveler card for a purchase that cost 602 rupees (Indian currency) . The bank posted a charge  $9.88 to her account that included the 4% fee. What foreign exchange rate, in Indian rupee per one U.S dollar, did the bank use for Sara's charge? Round your answer to the nearest whole number.