Apologies to the person who has contacted me privately, unfortunately the platform doesn’t let me send private messages because it says I haven’t interacted enough with users. It looks like I should be in the forum for at least three days, and I’ve only found it today.
To answer your question, yes, the analysis was done through pivot tables and charts, although some calculations needed doing in the source table. I have also explained those passages while talking through the method used, perhaps some may have thought it unnecessary as it was obvious that in order to get to certain conclusions there had been some further reworking of the data?