A commodity is 2,000 yuan, the price will be reduced by 10% first, and then the price will be reduced by 10%, what is the current price?
一件商品2000元，先降价10%，再降价10%，现价多少元．
<gadget id="calculator">10 / 100</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">2_000 * (9/10) * (9/10)</gadget>
<output>1_620</output>

<result>1_620</result>