The tax on a commodity is diminished by 24% but its consumption is increased by 12%. Find the decrease percent in the revenue derived from it?  Choose the correct choice from the following options.
A) 20 %	B) 18 %	C) 15 %	D) 12 %	E) 14 %

Rationale: "100 * 100 = 10000 76 * 112 = 8512 10000 - - - - - - - 1488 100 - - - - - - - ? = 15 % answer : c"
Answer: C