The tax on a commodity is diminished by 18% and its consumption increased by 15%. The effect on revenue is?	Choose the correct option
A) 2 %  B) 8.7 %  C) 5.7 %  D) 6.7 %  E) 1 %

Rationale: "100 * 100 = 10000 82 * 115 = 9430 - - - - - - - - - - - 10000 - - - - - - - - - - - 570 100 - - - - - - - - - - - ? = > 5.7 % decrease answer : c"
Answer: C