(7) The number appearing to the funding authority to be the number (expressed in thousands of square metres) treated by the authority under their scheme (or, where the school is a grant-maintained school, the number which would have been so treated had the school been covered by the scheme) as the area of the kitchen, swimming pool and rest of the site excluding the grounds, as therein defined,—
(a)adjusted by such amount, if any, as appears to the funding authority to be fair and reasonable to take into account any likely increases in area during the financial year in question, and
(b)multiplied by the number in column (11) opposite the entry for the authority in the table in Part V.