While the trustees of such savings bank are paying its expenses or any portion thereof, the amounts to be credited to its guaranty fund shall be computed at the same percentage upon the total dividends credited to its depositors instead of upon its net earnings. If the guaranty fund accumulated from earnings equals or exceeds ten percent of the amount due to depositors, the minimum dividend shall be four percent, if the net earnings for such period are sufficient therefor.
RCW 32.08.120