(6) The court shall then, in respect of the offence or offences concerned, order the person to pay-
(a) that amount; or
(b) without prejudice to the generality of paragraph (a), such proportion of that amount as it thinks fit after
taking into account any order or orders provided for or referred to in subsection (2)(a)(ii)(A), (B) or
(C) which has or have been made in respect of the person