I need to analyze the supply and demand for confectionery products in Los Angeles. I have an online store and wish to promote her on the Internet. (California state only).

How can I get a good forecast for next questions:
1. Will people buy my products?
2. What is the optimal price for each products?

First of all you need to do a deep analysis among your competitors, from the information you get statistics on target audience, product mix, the volume of demand and etc. You can order the marketing research in such http://cup.li/en firms, and u can also do the analysis for free, an example - specialized services of Google analytics, surveys among the audience thematic forums and blogs