Abstract
This paper aims to clarify the transformation of commercial structure from the viewpoint of quantity. To analyze that, we use three indexes as number of establishments, sales floor area and employee per 10,000 inhabitants. With those indexes, the average figures would be clear. The main conclusions are as follows. 1) While number of establishment per 10,000 inhabitants has decreased after S54, there are increases in sales floor area and employee per 10,000 inhabitants. 2) In the view of the commercial structure, the cities of "under 50,000" and "200,000-250,000" have specific character with regard to those three indexes.