the tax on a commodity is diminished by 20 % and its consumption increased by 25 % . the effect on revenue is ?
"100 * 100 = 10000 80 * 125 = 10000 - - - - - - - - - - - 10000 - - - - - - - - - - - 0 100 - - - - - - - - - - - ? = > 0 % no change answer : d"
subtract(const_100, multiply(multiply(add(const_1, divide(25, const_100)), subtract(const_1, divide(20, const_100))), const_100))