The tax on a commodity is diminished by 17% and its consumption increased by 15%. The effect on revenue is?
Choose the correct choice from the following answers:
A) 2%  B) 8%  C) 4.5%  D) 6.5%  E) 1.5%
100 * 100= 
<gadget id="calculator">100 * 100</gadget>
<output>10_000</output>
10000   83 * 115= 
<gadget id="calculator">83 * 115</gadget>
<output>9_545</output>
9545   -----------   10000-----------455   100-----------?=&gt; 4.55% decrease   Answer: 4.5%
<result>C</result>
The tax on a commodity is diminished by 17% and its consumption increased by 15%. The effect on revenue is?