There are countless ways to price a project.
Thinking about how long it will take and adding up the days is a start. But really it’s about the value of an idea, not the time spent. In a famous Victorian court case, John Ruskin taunted the artist James Abbott McNeill Whistler that a painting that had taken just two days to make was not ‘worth’ the fee of 200 guineas. The painter responded: “I ask it for the knowledge I have gained in the work of a lifetime.”
Excerpt from: Now Try Something Weirder: How to keep having great ideas and survive in the creative business by Michael Johnson