sounds pretty hard until you have some months into the product....and have the time to see if the market is going to want it.......if they dont want it your costs will be out of line..if they want it and are buying it then you can do the math and see how you are doing...

maybe a better question is ; will i make money when i sell 20,000 a month or year or whatever...
if you have to take money out of your product or service the first year you are asking a lot...