5For the purpose of determining the loss on account of a special rate, the foregoing rules shall have effect as if—
(a)the expression " rates " meant such special rate:
(b)the expression " separately rated area " meant the area in which such special rate is levied;
(c)the reduced and unreduced rateable value of any hereditament to which subsection (2) of section three of the Rating and Valuation Act, 1925, applies, were one-fourth part thereof;
and the loss on account of the special rates of a district shall be the aggregate of the losses on account of special rates of the areas in which special rates are levied within the district.