If a commodity is sold at 95% of the price, a profit of 2,520 yuan can be obtained; if it is sold at 75% of the price. There will be a loss of 1750 yuan, so how much is the purchase price of this product?
某种商品以定价的95%卖出，可得2520元利润；以定价的75%卖出．就会亏损1750元，那么这种商品的购入价是多少元？
<gadget id="calculator">2_520 + 1_750</gadget>
<output>4_270</output>

<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(19/20) - (3/4)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">4_270 / (1/5)</gadget>
<output>21_350</output>

<gadget id="calculator">21_350 * (19/20)</gadget>
<output>40_565/2 = around 20_282.5</output>

<gadget id="calculator">(40_565/2) - 2_520</gadget>
<output>35_525/2 = around 17_762.5</output>

<result>35_525/2 = around 17_762.5</result>