new type of computer is priced 25% higher than the cost price by the merchant, and then sold at a 10% price reduction to attract customers. As a result, the merchant makes a profit of 700 yuan per computer. How much does this computer cost?
一种新型电脑，商家按高于成本价的25%定价，然后为吸引顾客，又以降价10%的措施卖出，结果商家每台获利700元．这种电脑的成本价是多少元？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/4) * (1/10)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(1/4) - (1/10) - (1/40) - 1</gadget>
<output>-7/8 = around -0.875</output>

<gadget id="calculator">1 + (-7/8)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">700 / (1/8)</gadget>
<output>5_600</output>

<result>5_600</result>