what is marginal cost
In economics, marginal cost is the change in the total cost that arises when the quantity produced is incremented by one unit. That is, it is the cost of producing one more unit of a good.In general terms, marginal cost at each level of production includes any additional costs required to produce the next unit.f the cost function is differentiable joining, the marginal cost is the cost of the next unit produced referring to the basic volume. If the cost function is not differentiable, the marginal cost can be expressed as follows.