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.
For example, given sales of $500,000 for the year and 40,000 units sold, the price per unit is $12.50 ($500,000 divided by 40,000). Deriving per-unit price in this fashion requires that your company maintain detailed and accurate sales invoices that itemize quantity sold and sales price for each item.rice per unit details how much you charge for each unit of an item sold. If on a particular day, your business sells a cell phone for $100, a cell phone carrying case for $25 and a car charger for $30; your sales are $155.