Going from foundation Bookkeeping certificate to full foundation level accounting qualification...

am45

I have a question about my transition. I have completed level 2 foundation certificate in bookkeeping which consisted of bookkeeping transactions and bookkeeping controls exam. I now want to carry on and do the full level 2 accounting qualification and I am currently studying to do the elements of costing exam.
What will happen with my grading because i know in the bookkeeping qualification you do not get % marks you just get competent or not. How will they determine my full mark for the accounting qualification (e.g pass, merit, distinction) if two of the exams don't have %. Will AAT recognise I've done the full qualification even if they've been completed in two separate parts?