The tax on a commodity is diminished by 30% but its consumption is increased by 10%. Find the decrease percent in the revenue derived from it? Choose the correct choice from the following answers
A) 12 %  B) 14 %  C) 16 %  D) 20 %  E) 23 %

Rationale: "explanation : 100 * 100 = 10000 70 * 110 = 7700 10000 - - - - - - - 2300 100 - - - - - - - ? = 23 % e )"
Answer: E