State separately the amount of (a) cost of tangible goods sold, (b) operating expenses of public utilities or others, (c) expenses applicable to rental income, (d) cost of services, and (e) expenses applicable to other revenues. Merchandising organizations, both wholesale and retail, may include occupancy and buying costs under caption 2(a). Amounts of costs and expenses incurred from transactions with related parties shall be disclosed as required under § 210.4-08(k) .
17 C.F.R. §210.5-03