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. The additional cost needed to produce or purchase one more unit of a good or service. For example, if a firm can produce 150 units of a product at a total cost of $5,000 and 151 units for $5,100, the marginal cost of the 151st unit is $100.Industries with sharply declining marginal costs tend to be made up of firms that engage in price wars to gain market share.he total cost to a company to produce one more unit of a product. The marginal cost varies according to how many more or fewer units a company wishes to produce.