If a pair of sneakers is sold at a price of 200 yuan, you can earn 40 yuan. If the product is sold at a loss of 10%, how much is the loss?
一双球鞋按200元的价格售出，可以赚40元．如果这件商品售出时亏损10%，则亏损多少元．
<gadget id="calculator">200 - 40</gadget>
<output>160</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">160 * (1/10)</gadget>
<output>16</output>

<result>16</result>