It is important to remember that the number of followers is not always the most decisive factor when it comes to achieving a sale. Although having a large following can help increase your visibility and provide more social awareness, it is more important to have a high level of engagement and a loyal following that is interested in your product or service.
For example, if you sell expensive artwork that also falls under niche product that targets a narrow audience, you can achieve sales even with relatively few followers who are particularly interested in your images. On the other hand, if you're selling cheap and mainstream art, you may need a large following to make sales.
It is also worth noting that it is not always necessary to have a large number of followers to build a successful business or promote an art. Many smaller and niche-oriented businesses and artists have built successful businesses by focusing on building a loyal following and increasing their engagement on the platform.
Generally speaking, having a high number of engaged followers who are interested in your product or service is more important than having a large number of non-engaged followers.