§ 4. "That it is expedient in calculating Excess Profits Duty in cases where a ship has been sold since the fourth day of August, nineteen hundred and fourteen, to take the pre-war standard of profits to be—
- (1) where the standard adopted is a profits standard, the profits arising from the use of the ship during the pre-war trade years; and
- (2) where the standard adopted is a percentage standard, the same standard as if the ship had not been sold or, in the case of a ship which was used for the first time after the fourth day of August, nineteen hundred and fourteen, the capital represented by the ship at the date when it was first used;