Mike earns $17.5per hour and Phil earns $10.5 per hour. Approximately how much less, as a percentage, does Phil earn than Mike per hour?  Choose the correct choice from the following choices:
A) 25% B) 32.5% C) 37% D) 37.5% E) 40%
What % less of 17.5 is 10.5   let it be x % less ,then   =17.5(1-x/100)=10.5   1-x/100=10.5/17.5   x=200/5= 
<gadget id="calculator">200/5</gadget>
<output>40</output>
40%   Ans 40%
<result>E</result>
Mike earns $17.5per hour and Phil earns $10.5 per hour. Approximately how much less, as a percentage, does Phil earn than Mike per hour?