The Agricultural Holdings (Scotland) Act 2003 (“ the 2003 Act ”), schedule 2 (as inserted by section 21  (6) of this Act),Changing or clarifying the method for determining the additional amount of compensation payable to a tenant under section 17(4A) of the 2003 Act (as inserted, or to be inserted, by section 21  (2)  (c) of this Act),