Draft & production Calculation

[@JackSparrow-yt3qw]

Thank you for the detail information. I would like to ask if you have any lecture that explains the draft distribution across drawframe to ring frame in order to make a specific yarn count in ring? I have seen individual calculations however I could not find a way to calculate the distribution of draft in various processes (breaker, finisher, roving, ring) to get the final desired yarn count after ring?