Hello everyone, I am opening a refill ink and remanufacturing toner cartridges store very soon in January 2008. Work is hectic right now and I've been trying to find a good formula for setting my prizes.

A good friend told me that I should sell ink and toner cartridges 40 to 60 percent cheaper than staples does. But I've found that some of the competitors are sometimes selling some of their products with discounts up to 70 percent which I just think its too much.

It there a rule of thumb regarding pricing of your products? or should I just base my products according to the competition?