Ian Sales discusses his experiences and sales after winning the BSFA for his self-published novella, Adrift on the Sea of Rains:
Commercially, Whippleshield Books has not been a “winner”. I’m okay with this – I didn’t set it up to make me pots of money. If anything, I expected it to be a financial burden for much of its life. Happily, it went into the black in March this year… but then the ecommerce annual fee came due and I also had to reprint Adrift on the Sea of Rains. But it’s been back in the black since the beginning of May and seems likely to remain there. Whether it’ll have earned enough to pay the cost of producing book three of the Apollo Quartet is a different matter, however. I’ve been funding Whippleshield Books out of my own pocket so far, so if it doesn’t it won’t affect my planned publishing schedule.
Ian throws out a handful of graphs, and gives some indication of where and how the majority of sales are coming about (hint: Kindle sales, gods help us all). There's also some insight into what doesn't affect sales, and observations about the luck factor of making it big in self-publishing. Worth a read, especially for self-publishers or writers still trying to decide which approach will work best for them.
Check it out here: http://iansales.com/2013/05/31/self-publishing-one-year-on/