It is very wide at the top as salespeople typically have a large number of potential sales opportunities.

It represents the hierarchy of a company's products that have the highest and the lowest sales.

It is a diagram that represents the ratio of a company's sales to its cash flow.

For the most productive salespeople, the sales funnel is normally narrower at the bottom than the bottom of the funnel for less productive salespeople.

As salespeople move through the stages in the trust$-$based sales process, the funnel widens because all sales opportunities result in a sale or new customer relationship.