What should you set your price at for your story?
As still a novice at the selling part of this, my opinion may not mean much. I think we must distinguish between novel, novellas and short stories.
I have several short stories on Amazon which are priced at $.99, but I regularly have free give away days for different titles. From the first day I posted my first short story, I had no thought of making money on them. They are there for two reasons. Both are in reality the same thing. To get people to know who I am, by reading my works, or reading reviews of them. Once people know who I am, maybe they might gravitate toward my novels.
The price of a novella should reflect the extra work required to write it. Unless you are using it as a get aquainted bridge it should reflect a higher price. I would never give one away.
Novels can be hard to price. As a novice in this field, I want people to read my books, but if I price them too low, (I think $2.99 is as low as any novels should be priced.) people may not think it worth of buying. Price it too high and it may scare away potential buyers. My first novel is priced at $2.99, however my next one will hit the market much higher. It is not that I am selling a lot of books, I just feel with the passage of time, I must take a stand on the value of my works.