We have today (7 December 2020) published computer code that we developed to support GCSE, AS and A level awarding of calculated grades in summer 2020.
Calculated grades were not finally used in GCSE, AS or A level awarding (except in the small number of cases where they were higher than a candidate's centre assessment grade). Nonetheless, publishing this code promotes transparency, allowing others to review and evaluate this aspect of our approach.
The code we developed and are publishing today was not the final code used. Exam boards were responsible for determining the final code that supported the production of calculated grades in a way that would work with each of their individual computer systems. The code we produced was designed to assist exam board compliance by demonstrating how our relevant regulatory requirements could be implemented.