It will vary depending if its a B2B or a B2C business model. Usually is you are selling to a costumer, prices are very stratightforward with little room for negotiation. In this case, you would want to first do some market research on your competition and how much they are charging. If your product is very similar to other offerings, you can charge the same, but if is has some kind on differentiation, you should add this to the final price (do some research on EVC formula). In the other hand, if you are selling to a business, usually prices are negotiated depending on the cost savings or increased revenue generated.