Article 3 2.

for the purpose of the assessment of the quantitative impact institutions shall use the most recent data available;

where a precise assessment of the quantitative impact is not feasible, institutions shall instead perform an assessment of the impact based on a representative sample or other reliable inference methodologies;

for changes having no direct quantitative impact, no quantitative impact as laid down in Article 4(1)(c) for IRB approach or Article 6(1)(c) for AMA or Article 7a(1)(c) for IMA needs to be calculated.