A. Real property held by a company may be valued at not more than: its cost plus the cost of capitalized additions and permanent improvements, less depreciation, or its fair market value as determined by appraisal within the most recent three years, whichever is less. Depreciation shall be computed under the straight line method or, at the option of the company, under any other method resulting in larger accumulated depreciation at any given time. Depreciation of any buildings shall be based upon an estimated useful life of not more than fifty years.
B. Property acquired in satisfaction of a debt shall be valued at its fair market value or the amount of the debt, including capitalized taxes and expenses, whichever amount is less.