Sandy purchased 20 dozen toys at the rate of $360 per dozen. Sandy sold each toy at the rate of $31.50. What was the percentage profit? Choices:
A) 3%
B) 5%
C) 7%
D) 9%
E) 11%
A dozen toys cost $360, so each toy cost $30.   selling price / cost price = 31.50 / 30= 
<gadget id="calculator">31.50 / 30</gadget>
<output>1.05</output>
1.05   The percentage profit is 5%.   The answer is 5%.
<result>B</result>
Sandy purchased 20 dozen toys at the rate of $360 per dozen. Sandy sold each toy at the rate of $31.50. What was the percentage profit?