A product is priced at a 20% profit, and then sold at a 20% discount, resulting in a loss of 64 yuan. How much does this item cost?
一件商品按20%的利润定价，然后又按8折售出，结果亏损了64元．这件商品的成本是多少元？
<gadget id="calculator">1 - 0.96</gadget>
<output>0.04</output>

<gadget id="calculator">64 / 0.04</gadget>
<output>1_600</output>

<result>1_600</result>