Stage 7.Develop a forecast for each target market. In most cases a market research study will provide an estimate of those who will purchase a new product. Usually a question based on the probabilities of purchasing provides the answer. In the briefcase situation, assuming a survey of the market included teachers, business people, etc., the teachers had the highest group probability of purchasing of 16 percent of those who claim they would buy ; that is 20 teachers in a school board area would represent the initial potential for the entrepreneur’ s new product. Should the forecast prove to be vague or indeterminate, the entrepreneur may wish to reappraise the market.