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.
The unit price of a product is basically what the cost of each pound, ounce or gram, square foot or meter, etc., of the product is. In some grocery stores and supermarkets, the unit prices are shown with the total price but this isn't always available, so it's important to know how to work this out for yourself. Ad. 2.