Are you charging enough for your info-products?

The minimum price for physical information products can be calculated using the "10:1 rule".

This rule says the price of a physical product sold through direct marketing must be at least 10 times your product cost.

Example: A set of DVDs that costs $8 per copy to make should sell for a minimum of $80.

A book that costs $2 per copy to print should sell for at least $20.

But that's the minimum. If your information is worth more, and buyers will pay more, then charge more.

Source: Speaker Fulfillment Services, News & Notes, Vol. 15, p. 1.