Each public utility shall furnish to the Commission in such form and at such time as the Commission shall require, such accounts, reports, and information as shall show in itemized detail: Depreciation; salaries and wages; legal expenses; taxes and rentals; quantity and value of material used; receipts from residuals, by-products, services or other sales; total and net costs; net and gross profits; dividends and interest; surplus or reserve; prices paid by consumers; and in addition such other items, whether of a nature similar to those hereinbefore enumerated or otherwise, as the Commission may prescribe, in order to show completely and in detail the entire operation of the public utility in furnishing its product or service to the public.