How does an NFT make money?

Could you please elaborate on how exactly an NFT generates revenue? I'm quite curious about the underlying mechanisms and the various ways it can be monetized. Is it primarily through sales and auctions, or does it involve royalties or other forms of passive income? I'm also interested in knowing how the value of an NFT is determined and how it impacts its profitability. Could you break it down for me in a way that's easy to understand? Thank you for your time and assistance.