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? Select the correct option
A) 20%  B) 18%  C) 15%  D) 12%  E) 14%
100 * 100= 
<gadget id="calculator">100 * 100</gadget>
<output>10_000</output>
10000   76 * 112= 
<gadget id="calculator">76 * 112</gadget>
<output>8_512</output>
8512   10000------- 1488   100 ------- ?= 15%   ANSWER:15%
<result>C</result>
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?