Xavi is a painter of landscapes and seashore portraits. He works outside and has no overhead or fixed costs such as a studio.

Xavi is a painter of landscapes and seashore portraits. He works outside and has no overhead or fixed costs such as a studio. In a typical year, it costs him $212 in canvas, paints and brushes per painting. This year he sold 422 pictures at a price of $256 each. At the current selling price, what is his percent margin?