It's important that self-published writers keep an accurate total of their book sales. One aspect of this is the number of books sold and the money made. I've created a Google spreadsheet for just that. This is a public document, so feel free to copy it for your own use. Using this document, you enter the following each month: Total Income Total Sales As you enter these, you will automatically see the statistics for the following: Yearly Income Yearly Sales Per Month Income Per Month Sales Per Sale Income You can access this file here: Book Sales Statistics Spreadsheet Currently, I have spaces in there for sales during 2012 and 2013. I kept these on the same page of the document for quick and easy comparison. If you have any suggestions for improving this form, let me know in the comments.
The Past the Future Will Read In Its Present