s 22 Reductions in respect of utilised ring fence losses
(1) If one or more ring fence losses are set off under section 393 against any profits of a post-commencement period, reductions shall be made in that period in accordance with this paragraph. (2) The amount in the non-qualifying pool shall be reduced (but not below nil) by setting against it a sum equal to the total amount so set off. (3) If any of that sum remains after being so set against the amount in the non-qualifying pool, the amount in the qualifying pool shall be reduced (but not below nil) by setting against it so much of that sum as so remains.