A product is priced at a profit of 25%, and then sold at a 10% discount, resulting in a profit of 20 yuan per item. How much is the cost of this product?
一件商品按25%的利润定价，然后又打九折出售，结果每件获利20元，这件商品的成本是多少元？
<gadget id="calculator">1.125 - 1</gadget>
<output>0.125</output>

<gadget id="calculator">20 / 0.125</gadget>
<output>160</output>

<result>160</result>