My books cost $6.99 each to print. I sold them for $10.99 each. Do I calculate my income at $4.00 per book?

[Ms-Ray]

i wrote a book and sold it at $10.99 per book but I paid $6.99 to print each book.  How do I calculate the income?

[Bsch4477]

You would complete Sch C where you report income and expenses.