A sales forecast based on an estimate of total market potential for a specific market and projecting the market share a business can capture in any given area at any given time is using what approach?

The correct answer is: Build-up approach.

Explanation:

The Build-up approach estimates the sales potential of the company by calculating how much of a product could be purchased in a given period by a potential buyer in a specific geographic region. The calculation is then multiplied by the number of potential customers, adding the sum of all the considered geographic areas.