The price of a digital camera with an original price of 3,500 yuan has been reduced by 10% for the first time and 20% for the second time. How much is the current price of this digital camera?
一台原价3500元的数码相机降价了，第一次降低了10%，第二次又降低了20%，这台数码相机现价多少钱？
<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">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3_500 * (9/10) * (4/5)</gadget>
<output>2_520</output>

<result>2_520</result>