What is royalty percentage?
Royalties are how much you gain for each sale of your artwork on the secondary market. If you set it at 5%, each and every time anyone sells any copies of the artwork on this site, you get 5% of that sale — at the current sale price!
For beginners we advise that royalties should be set in the range of 0—10%, because if you set a higher percentage, your NFT may not be less interesting for purchase (subsequent resale).