Article 4 Increases in certain lump sums
In respect of any lump sum or instalment of a lump sum which became payable before 12th April 1993 but on or after 6th April 1992 there may be paid an increase of 3.6 per cent of the amount of the lump sum or instalment (as increased by the amount under section 1 of the 1971 Act or under the existing Orders) multiplied by
where
aA is the number of complete months in the period between the beginning date for the lump sum or, if later, 6th April 1992 and the date on which it became payable; and
B is 12.