The bulk of the costs is the development process and the print run, but I continue to have additional costs with marketing and promotion. If I sell out the entire rest of print run, I probably have another $8,800 in potential revenue, which (barring massive future marketing expenses) would make the project profitable. That assumes my time is worthless - if we paid me even a minimum-wage hourly rate for my work on the project, I'm deep underwater. Given that this is a so far a passion project, I'm fine with my time being counted as free.
Here are the numbers is in graph form:
The time axis advances to the right here, showing increasing revenue compared to mostly fixed costs, but the time isn't linear - it's just whenever I do an update.
For this one, time is linear - this is the history of the project starting with the print run at the end of last year, with additional costs added to revenues as time progresses to the right.