The tax on a commodity is diminished by 14% and its consumption increased by 15%. The effect on revenue is? Choose the correct choice from the following answers
A) 2.1%  B) 8.1%  C) 5.1%  D) 6.1%  E) 1.1%
100 * 100= 
<gadget id="calculator">100 * 100</gadget>
<output>10_000</output>
10000   86 * 115= 
<gadget id="calculator">86 * 115</gadget>
<output>9_890</output>
9890   -----------   10000-----------110   100-----------?=&gt; 1.1% decrease   Answer: 1.1%
<result>E</result>
The tax on a commodity is diminished by 14% and its consumption increased by 15%. The effect on revenue is?