Deposits, loans, or bonds for long-term investment shall be valued at the current value computed based on the period for amortization. Computation of the current value shall be based on the interest at the contracted rate if the debt is interest-bearing, or at the average interest rate prevailing among local banks on deposit at fixed term of one year if the debt is not interest-bearing.
When the debt as referred to in the preceding paragraph is recovered at maturity, the portion of interest accuring from the value in excess of the current value shall be listed as profit for the year in which the debt is recovered.