Pounds : The pound or pound-mass (abbreviations: lb, lbm, lbm, â[1]) is a unit of mass with several definitions. Nowadays, the most common is the international avoirdupois pound which is legally defined as exactly 0.45359237 kilograms. A pound is equal to 16 ounces.
marginal marÂ·ginÂ·al (mÃ¤r'jÉ-nÉl) adj. Of, relating to, located at, or constituting a margin, a border, or an edge. Marginally within a lower standard or limit of quality. Relating to or located at the fringe of consciousness.
Marginal cost is the change in total cost which occurs when the number of units produced change by just one unit. In other words, marginal revenue is the cost of producing one additional unit of a particular good. Marginal revenue is calculated by dividing the total variable cost of production by the total quantity of goods (MC = VC / Q).