Royalties are payments made to the playwright each time their play is performed. The amount of the royalty can vary depending on several factors, such as:
* The length of the play
* The size of the theatre
* The number of performances
* The playwright's experience and reputation
* Whether the production is professional or amateur
It's important to note that royalties are not always paid in a lump sum. Sometimes, they are paid on a per-performance basis.