The price of a jacket is reduced by 10% for the first time, and the price is reduced by 8% for the second time. How much is the current price lower than the original price?
一件上衣第一次降价10%，第二次在此基础上又降价8%，现价比原价降了多少．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</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">(9/10) * (23/25)</gadget>
<output>207/250 = around 0.828</output>

<gadget id="calculator">1 - (207/250)</gadget>
<output>43/250 = around 0.172</output>

<result>43/250 = around 0.172</result>