One of the easiest ways to utilize feedback is to focus on “The Lean Startup” approach (read more about it here), but it involves three basic pillars: prototyping, experimenting and pivoting. By pushing out a product, getting feedback and then adapting before you push out the next product, you can constantly improve and make sure you stay relevant.
Describe how you intend to price your product or service. Pricing has to be competitive to attract customers but high enough to cover costs and generate a profit. Pricing can be based on markup from cost, value to the buyer, or in comparison with similar products/services in the marketplace. Breakeven analysis can help determine sales and pricing for profitability. You'll also want to take a look at Pricing Strategies to Increase Profitability.
So, where are we supposed to turn to make money the legitimate way online? This isn't just about generating passive income; this is also about finding ways and means to create an active income through the conveniences afforded to us by the internet that will not only help us with our debt obligations, but also empower us to save, invest and get really rich in the future.