While it is not uncommon for the precise source of chest wall pain to remain unknown, some possible causes of costochondritis include: 1  Injury or trauma: Pain within the area of the chest wall may emerge as the result of a direct blow or injury to the area. Arthritis: Some evidence has suggested that symptoms of costochondritis are associated with degenerative joint conditions, such as osteoarthritis or rheumatoid arthritis.
In retail, unit price is the price for a single unit of measure of a product sold in more or less than the single unit. The unit price tells you the cost per pound, quart, or other unit of weight or volume of a food package. It is usually posted on the shelf below the food.
Definition of UNIT COST. : the cost allocated to a selected unit and commonly calculated as the cost over a period of time divided by the number of items produced.ADVERTISEMENT. This word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis. the cost allocated to a selected unit and commonly calculated as the cost over a period of time divided by the number of items produced. ADVERTISEMENT.