Marginal revenue (MR) - Financial definition
Concise definition of the term marginal revenue
Marginal revenue is the change in total revenue caused by the sale of an additional unit of goods or services a company produces.
Comprehensive definition of the term marginal revenue
If a pencil producing company's total revenue increases from $750,000 to $750,005 for having sold an additional pencil, then the marginal revenue for that unit of goods would be $750,005 - $750,000 = $5.