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Amendment of section 19 of Principal Act | 
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25. Section 19 of the Principal Act is amended by the substitution of the following paragraph for paragraph (a): | 
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“(a) the following are referred to as the ‘basic rate’: | 
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(i) each of the rates represented by— | 
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(I) ‘C’ in the formulae in subsections (4), (5) and (6) of section 17, | 
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(II) ‘E’ in the formulae in subsections (5) and (6) of section 17, and | 
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(III) ‘G’ in the formula in subsection (6) of section 17; | 
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(ii) each amount of local property tax referred to in subsections (2) and (3) of section 17, and”. |