The cost price of a piece of clothing is 52 yuan. To ensure a 25% profit rate, how much is the selling price?
一件服装的成本价是52元，要保证25%的盈利率，那么售价是多少元．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">52 * (1/4)</gadget>
<output>13</output>

<gadget id="calculator">52 + 13</gadget>
<output>65</output>

<result>65</result>