The tax on a commodity is diminished by 10% and its consumption increased by 15%. The effect on revenue is?  Choose the correct choice from the following answers
A) 2% decrease B) 3.5% increase C) 9% decrease D) 3% decrease E) 2% increase
100 * 100= 
<gadget id="calculator">100 * 100</gadget>
<output>10_000</output>
10000   90 * 115= 
<gadget id="calculator">90 * 115</gadget>
<output>10_350</output>
10350   -----------   10000-----------350   100-----------?=&gt; 3.5% decrease   Answer: 3.5% increase
<result>B</result>
The tax on a commodity is diminished by 10% and its consumption increased by 15%. The effect on revenue is?