Excellent summary, @PaulGraves! I think day/time of approval used to matter, when the library was much, much smaller, but with hundreds/thousands of new items being approved each day on AudioJungle (and thus never getting any tangible exposure on the home page or “new items” page any longer), I don’t think day of approval matters at all any more. I don’t know a specific percentage, but I would say that most customers simply rely on search to find what they’re looking for before then diving down into other variables such as sales, rating, author reputation, date of upload, sub-categories etc… Nothing beats actually listening to the music to determine suitability and quality of course.
That said, there still might be some perceived value in getting an item approved at the beginning of a week or month, as it increases the opportunity and potential to end-up in the Weekly Top Sellers page. i.e. The more days a new item is for sale in any given week, it will have a greater potential impact on popularity should the item start selling multiple times… None of this is a guarantee or a scientific fact of course, just a reasoned hypothesis. It’s exactly the same way musicians release records on a certain day, writers release books on a certain day, and movies are released on a certain day. It’s all built around the day/time/range where data is aggregated for charting purposes.
As an aside, did your analysis include or exclude items already on the Top Sellers page? That may be a variable your research could have potentially overlooked. i.e. If the item was a Top Seller, it would have received extra exposure irrespective of what day the item was approved.
####[ TL;DR ] Make high quality music that customers want, keep creating/uploading on a regular basis, and never obsess about what day or time your item is submitted or approved.