The Commission shall establish and maintain its accounts pursuant to chapter
91 of title
31 and the provisions of this part. Such accounts shall specify all revenues received by the Commission, including tolls for the use of the Panama Canal, expenditures for capital replacement, expansion, and improvement, and all costs of maintenance and operation of the Panama Canal and of its complementary works, installations, and equipment, including depreciation, payments to the Republic of Panama under the Panama Canal Treaty of 1977, and interest on the investment of the United States calculated in accordance with section
3793 of this title.