The marginal cost is the cost that is added by producing one additional unit of a product or service. This is, in fact, a <em>change</em> in the total cost that is generated by the production of an additional product or service.
Marginal revenue is the revenue generated by the production of an additional product or service. It can be presented as <em>additional revenue </em>by increasing the sales of a product or service by one unit.
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marginal revenue is additional cost you accrue to produce extra stuff </span><span>marginal benefit is the gain you get for doing anything extra</span><span />
