6.—(1) The Agency must calculate the levy to be issued to a constituent authority for a financial year in accordance with this regulation.
(2) Where there is one constituent authority of a Regional Flood and Coastal Committee, the levy to be issued to the constituent authority is the amount of the Agency’s qualifying expenses for the area of the Committee for the financial year.
(3) Where there is more than one constituent authority of a Regional Flood and Coastal Committee, the levy to be issued to each constituent authority is calculated in accordance with the following formula—
where—
A is the constituent authority’s relevant council tax base for the financial year,
B is the Agency’s qualifying expenses for the area of the Committee for the financial year, and
C is the sum of the relevant council tax bases for the financial year for all the constituent authorities of the Committee.