How can one determine the marginal revenue formula for a business?

To determine the marginal revenue formula for a business, you can calculate the change in total revenue when one additional unit of a product is sold. The formula for marginal revenue is MR TR/Q, where MR is marginal revenue, TR is the change in total revenue, and Q is the change in quantity sold. By analyzing the revenue data and applying this formula, businesses can determine their marginal revenue.