(1) The prescribed percentage of the rate of the basic pension under paragraph 2(5)(c) of Schedule 28 to the Finance Act 2004 is that found by the formula—
Here—
A is the total number of years of a member’s employment to which the pension scheme relates which is not or has not been contracted-out employment, and
B is the total number of years of a member’s employment to which the pension scheme relates.
(2) In paragraph (1) “the basic pension” and “contracted-out employment” have the meanings given by paragraph 2(5A) of Schedule 28 to the Finance Act 2004 .