For the purpose of such computation the total of the property and assets of the corporation organized only under the laws of Louisiana, both within and without the state, shall include the property and assets of its foreign subsidiary or subsidiaries; the total volume of business done by the corporation, both within and without the state, shall include the volume of business done by its foreign subsidiary or subsidiaries; there shall be included in the report of the corporation a comparative consolidated balance sheet of the corporation and its foreign subsidiary or subsidiaries, as of the beginning and close of its last calendar year or fiscal year; and the entire issued and outstanding capital stock, surplus and undivided profits of the corporation shall be deemed to be the entire issued and outstanding capital stock, surplus and undivided profits, determined as herein provided, of the corporation and its foreign subsidiary or subsidiaries on the basis of their consolidated accounts.
La. Revenue and Taxation § 47:607