Or, for a long time, the interest of the capital, which is especially used on the price of the currency. It is a deadline that is set in terms of customs or regulations for payment of the currency transactions related to international trade transactions.” The cost of finance is the interest that the seller receives from the buyer in addition to the price of the goods. Vendors agree to the buyer about the long-term transaction in the “proformity” of the offer under the title of the payment terms usually amounting to the cost of interest (i.e. the amount and interest of receipt from the date of the transport of the goods and on the price of the goods and in “profearma” after the price of “opporto fare” so that the sale price is less than the price. The difference between the “improvement” transactions with conventional transactions in Iran today is calculated and controlled by the Central Bank’s currency monitoring office. Binance makes the seller’s confidence in the receipt of its demands, as the credit-recognising bank determines by taking the necessary guarantee or collateral of the buyer’s payment of the transaction to the beneficiary in a certain period (with water)