Each return filed by a retailer shall show the total sale price of the property sold by him during the reporting period in respect of which he collected the tax hereby imposed. Each return filed by a purchaser shall show the total sale price of the property purchased by him during the reporting period in respect of which a tax is due hereunder.
All returns shall show the amount of the taxes for the period covered by the return and such other information as the Director of Finance deems necessary for the proper administration of this article.