Subdivisions of account 661 " Interest expense " are used to record interest on loans and similar debts of affiliated entities.
Account 665 " Discounts given " is debited with the amount of discounts given by the entity to its customers by crediting account 411 " Customers " or a cash account.
Account 666 " Financial foreign exchange losses " is debited with foreign exchange losses on financial transactions made by the entity during the financial year.
Account 667 " Losses from sales of marketable securities " is debited with the gross value of the marketable securities sold. It is credited with the sale price of these marketable securities.