For an overdraft authorisation or overdraft facility, where the annual percentage rate of charge is calculated before they are used, the calculation is made using the method defined by the formula set out in the appendix to this code and referred to in article R. 314-3. .
After use of an overdraft authorisation, overdraft facility or overdraft, the annual percentage rate of charge is calculated by relating the amount of credit to be taken into consideration, according to the number method defined by B of the Annex to Decree no. 2002-928 of 10 June 2002 pursuant to Article 1 of decree no. 2002-927 of 10 June 2002, for a period of one day, at the end of which it is deemed to have been repaid at the same time as the related agios. For this purpose, each of the debit balances successively entered in the account during the interval between two contractual closures is multiplied by its own duration in days.