the tax on a commodity is diminished by 18 % and its consumption increased by 15 % . the effect on revenue is ?
"100 * 100 = 10000 82 * 115 = 9430 - - - - - - - - - - - 10000 - - - - - - - - - - - 570 100 - - - - - - - - - - - ? = > 5.7 % decrease answer : c"
subtract(const_100, multiply(multiply(add(const_1, divide(15, const_100)), subtract(const_1, divide(18, const_100))), const_100))