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.
In economics, marginal cost is the change in the opportunity 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.[1] Intuitively, marginal cost at each level of production includes the cost of any additional inputs required to produce the next unit.