If a commodity is sold at the fixed price, it can make a profit of 350 yuan. If it is sold at 80% of the price, the loss will be 150 yuan. What is the purchase price of the commodity?
某种商品按定价卖出可获得利350元，如按定价的80%出售，则亏损150元，该商品的购入价是多少？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">350 * (4/5)</gadget>
<output>280</output>

<gadget id="calculator">280 + 150</gadget>
<output>430</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">430 / (1/5)</gadget>
<output>2_150</output>

<result>2_150</result>