818R29. For the purposes of Chapters II to XIV, XVI and XX, the value for the year of a property of an owner for a taxation year means,(a) where the property is a hypothecary claim, a mortgage, an agreement of sale or an investment property that is an amount on deposit to the credit of an insurer with a corporation authorized to accept deposits or to offer services as a trustee, the amount by which the quotient obtained when the gross investment income derived from the property for the year is divided by the average annual rate, expressed as a fraction, of the interest earned by the owner during the year on the amortized cost of the property exceeds the quotient obtained when the amount of the interest paid or payable for the year on a debt incurred for the purposes of acquiring the property is divided by the average annual rate of interest, expressed as a fraction, paid or payable by the owner on the debt for the year;
(b) in the case of a property, other than property referred to in paragraph a, that was not owned by the owner throughout the year, the proportion of either its valuation at the end of the preceding taxation year, where it was owned by the owner at that time, or its valuation, where it was acquired during the year, that the number of days during which the property may be considered to have been owned by the owner is of the number of days of the year; or
(c) in all other cases, one-half of the aggregate of the valuation of the property at the end of the year and its valuation at the end of the preceding taxation year.