Cost analysis

OK, here is my best guess cost analysis of how much I would like to sale my paintings for if I could pick a price...Most painters would say that they value their time at around $30.00 per hour. Most of my paintings take on average 7-10 hours. Let's use 7 hours the minimum, which would give a value of $310 dollars. Supplies:
1) Canvas....on average $10.oo for a 16 by 20 inch
2)Paints and medium....this is really a guess, but I would estimate I use about $5.00 worth of paint and medium for one painting.
3) Wrapping and boxing painting for shipment. Including bubble wrap, tissue wrap, tape and box, I would say this is probably around $4.00 per painting.
4) Shipping...I always seem to short-change myself on shipping charge and usually I end up paying at least $1.00 more than what the buyer actually pays.

In total therefore, I would like to list my paintings for an average price of $330. Well, I usually list them for $25.o0! So, I am making a whopping $5.00 per painting. Now, why don't I list them for much more? They would not sale,period. There is no demand for my paintings, so I could never get the true value of what I think they are worth. Only once out of about 20 paintings I have sold on Ebay have I had more than 1 bid. I always figure that if my paintings are worth more, somebody would bid 1 more dollar. Anyways, I can truly say that my paintings are listed as a real bargain on Ebay. On a future post, I would like to talk about an artist on Ebay who really has been successful and who I admire....