Salary Outlook. Hygienists make comfortable salaries, especially considering that more than half of them work part time. In 2013, their median salary was $71,110. The best-paid earned about $96,690, and the bottom 10 percent earned $47,880.Many of the top-paid hygienists work in dental offices, but ambulatory health care services also pay well.n 2013, their median salary was $71,110. The best-paid earned about $96,690, and the bottom 10 percent earned $47,880. Many of the top-paid hygienists work in dental offices, but ambulatory health care services also pay well.
Historical Cost. Definition. Historical Cost is the original cost incurred in the past to acquire an asset. Historical Cost Convention requires assets to be recognized at their historical cost. Explanation. Assets need to be assigned some value in the accounting books.
Verification: Because the cost of an asset at the time of transaction is usually documented, the historical costs can be verified. For example, a business can look at invoices and contracts. Lesson Summary. Historical costs and costs, are often interchangeable.