Composition scheme rate reduced and limited to turnover of taxable supplies of goods, altering composition levy incidence. Amendment prescribes reduced composition scheme tax rates by substituting in clause (i) the words 'half per cent.' for the earlier rate and, in clause (iii), replacing 'half per cent. of the turnover' with 'half per cent. of the turnover of taxable supplies of goods', thereby linking the composition levy to taxable supplies of goods and lowering the applicable rate.