The tax on a commodity is diminished by 25% and its consumption increased by 15%. The effect on revenue is?  Select
A) 12% decrease	B) 18% decrease	C) 19% decrease	D) 13.75% decrease	E) 12.5% decrease
100 * 100= 
<gadget id="calculator">100 * 100</gadget>
<output>10_000</output>
10000   75 * 115= 9200   -----------   10000-----------1375   100-----------? =&gt; 13.75% decrease   Answer: 19% decrease
<result>C</result>
The tax on a commodity is diminished by 25% and its consumption increased by 15%. The effect on revenue is?