EBU Single Rulebook Q&A 23 May 2018 2018_3927 IFRS 9 Transitional arrangements - Calculation of the amount of CET add-back in accordance to Article 473a – paragraph 4

How should the amount referred to in Article 473a(4) be calculated:a) The difference between the Expected Credit Losses (ECL) at reporting date for loans that are not credit impaired and the ECL at implementation date for all the loans that are not credit impaired at the implementation date, or;b) The ECL at reporting date for loans that are not credit impaired minus the ECL at implementation