12(1)If the revenue support grant report for a chargeable financial year is approved by resolution of the House of Commons, as soon as is reasonably practicable after the report is approved the Secretary of State shall calculate an amount in relation to each county council and each district council by reference to the formula—
(2)In the case of a county council A is an amount equal to the county share for the year and C is the aggregate of the relevant populations of all county councils.
(3)In the case of a district council A is an amount equal to the district share for the year and C is the aggregate of the relevant populations of all district councils.
(4)B is the relevant population of the council.
(5)The relevant population in relation to a council shall be calculated by—
(a)taking the number of those members of the population of the council’s area who fall within such description as is specified in regulations made by the Secretary of State, and
(b)making such adjustments (if any) by way of addition or subtraction (or both) as are specified in, or calculated in a manner specified in, the regulations.
(6)As regards each council the calculation shall be made to the nearest £100 in accordance with the following rules—
(a)where (apart from this sub-paragraph and after taking into account each complete £100) there would be an excess of more than £50, the excess shall be made up to £100, and
(b)where (apart from this sub-paragraph and after taking into account each complete £100) there would be an excess of £50 or less, the excess shall be ignored.
(7)As soon as is reasonably practicable after making the calculation the Secretary of State shall inform each county council and each district council of the amount which he calculates in relation to it.
(8)The Secretary of State shall pay to each council the amount calculated in relation to it.
(9)The amount shall be paid to the council during the course of the year concerned, in such instalments and at such times as he decides with the Treasury’s approval.