The retail price of a commodity is 200 yuan, and the price has been reduced twice (1/10), how much less is the current price than the original price?
一种商品零售价200元，两次连续降价(1/10)，现价比原价少多少元？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">200 * (9/10) * (9/10)</gadget>
<output>162</output>

<gadget id="calculator">200 - 162</gadget>
<output>38</output>

<result>38</result>