How many need it?
The Quantity criterion examines the size of the addressable market and whether that size is sufficient to support a viable business at realistic conversion rates.
A strong answer quantifies the number of potential customers using credible data, identifies what proportion of that group is realistically reachable given distribution and marketing constraints, and shows that the resulting revenue is sufficient for the business model. A weak answer uses total market figures without accounting for the fraction that is actually addressable, or confuses a large market with a large opportunity.
Quantity interacts directly with cost: a product that requires high tooling investment or expensive manufacturing needs a large enough market to recover those costs at a viable price. Evaluating quantity and cost together surfaces the minimum scale a product needs to reach profitability.
