How Much Do Kindle Singles Authors Make?

paidcontent reporting:

The top-ten list of bestselling Kindle Singles includes a number of big-name writers. But how is the format working for writers who don’t have the brand of a Stephen King or Jodi Picoult?
In addition to sharing overall sales information about the Kindle Singles program, Amazon allowed Kindle Singles authors to break their non-disclosure agreements and share their sales figures with me. I chose about a dozen authors, out of the list of over 100 or so, to speak with, and interviewed them without any restrictions from Amazon (NSDQ: AMZN). Excerpts from the interviews are below.

A few notes before the interviews: The authors’ background varies, but most have previous writing experience and many have been published by traditional book publishers, newspapers or magazines. (This differentiates the group from many of the authors uploading their works to Kindle Direct Publishing.
Authors I spoke with had varying experiences in terms of how closely their work was edited. Blum told me “the amount of editing varies significantly, depending on the writer and the piece. We work with many Singles authors to develop and refine an idea, and some authors go through multiple drafts before their work is accepted. Others deliver work that is ready for publication as is, with only copyediting needed.”
In some cases Amazon pays Kindle Singles authors stipends or fees for reporting a Kindle Single. (Author Oliver Broudy refers to those stipends below.) The company did not give me a range for how much it has paid in advance. “There’s not a goal for using one particular business model or another,” Kindle VP Russ Grandinetti told me.
Excerpts from my interviews:
Author: Mishka Shubaly
Bio: Musician; bassist for The Freshkills
Kindle Singles: “Shipwrecked,” $1.99 (4/2011), “The Long Run,” $1.99 (10/2011), “Are You Lonesome Tonight?” $1.99 (3/2012). “The Long Run” is the ninth-bestselling Kindle Single overall, by units.
Sales: “Shipwrecked”: 21,024 copies, “The Long Run”: 60,567 copies, “Are You Lonesome Tonight?”: 11,406 copies.
Estimated royalties ([price number of copies sold] 0.70): $129,544.82.....
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