The tax on a commodity is diminished by 15% and its consumption increased by 10%. The effect on revenue is?
Choose the correct choice from the following answers
A) 8.5
B) 6.5
C) 5.5
D) 5.6
E) 4.4
100 * 100= 
<gadget id="calculator">100 * 100</gadget>
<output>10_000</output>
10000   85 * 110= 
<gadget id="calculator">85 * 110</gadget>
<output>9_350</output>
9350   -----------   10000-----------650   100-----------?=&gt; 6.5% decrease   Answer:6.5
<result>B</result>
The tax on a commodity is diminished by 15% and its consumption increased by 10%. The effect on revenue is?