If a merchant’s purchase price is 8% cheaper and the selling price remains unchanged, then his profit (according to the purchase price) can be increased from the current x% to (x+10)%. What is x equal to?
若一商人进货价便宜8%，而售价保持不变，那么他的利润(按进货价而定)可由目前的x%增加到(x+10)%，x等于多少．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">8 / 100</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">1 - (2/25)</gadget>
<output>23/25 = around 0.92</output>

<gadget id="calculator">100 * (23/25)</gadget>
<output>92</output>

<gadget id="calculator">8 / 92</gadget>
<output>2/23 = around 0.086957</output>

<gadget id="calculator">(1/10) - (2/23)</gadget>
<output>3/230 = around 0.013043</output>

<gadget id="calculator">1 / 92</gadget>
<output>1/92 = around 0.01087</output>

<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">(1/92) - (1/100)</gadget>
<output>1/1_150 = around 0.00087</output>

<gadget id="calculator">(3/230) / (1/1_150)</gadget>
<output>15</output>

<result>15</result>