If a commodity is sold at the fixed price, it can make a profit of 960 yuan, but if it is sold at a 20% discount, the loss will be 832 yuan. What is the purchase price of this commodity?
一种商品按定价卖可获得利润960元，如果打八折卖则亏损832元，这种商品的进价是多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">960 * (4/5)</gadget>
<output>768</output>

<gadget id="calculator">768 + 832</gadget>
<output>1_600</output>

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

<gadget id="calculator">1_600 / (1/5)</gadget>
<output>8_000</output>

<result>8_000</result>