The document discusses estimating market potential and sales for a product or service. It defines market potential as the potential revenue that can be generated from a target market or segment. Market potential is usually measured by sales value or volume. It then discusses why estimating market potential is important for expanding existing businesses, introducing new products, allocating resources efficiently, and making entry and exit decisions from markets. The document outlines a 5-step approach to determining market potential: 1) verifying market size, 2) analyzing market growth trends, 3) examining competition, 4) profiling target consumers, and 5) evaluating profitability. It also provides methods for calculating market potential using variables like target audience, penetration rate, average selling price, and annual consumption.