Paragraph 4 Reduction of increases where qualifying dates occur during the period of contributory service

Where a pension falls to be increased under any Table, and the date specified in relation to that Table in paragraph 5 occurred during the period of contributory service, the increase determined under that Table or under a paragraph of that Table shall be reduced to be the product of the following formula:—

\frac{D}{E} \times F

where—

D is the number of days from the commencement of the period of contributory service to immediately before the date specified in relation to that Table in paragraph 5;
E is the number of days in the period of contributory service, subject to paragraph 6; and
F is the increase determined under that Table or paragraph.