Paragraph 6 Calculation of increase
The increases under Part I of the Act shall be calculated separately under paragraphs 7 and 8 in respect of—
(a)
the part of the increasable rate of the pension being the sum of the portions allocated under paragraph 3 to periods specified in paragraph 1 beginning before 1 April 1969 (“the pre-1969 part”); and
(b)
the portion of the increasable rate of the pension allocated under paragraph 3 to each period specified in paragraph 1 beginning on or after 1 April 1969—
and then added together to give the total increases under Part I of the Act in respect of the pension.