If a leather jacket is sold at the original price, it can make a profit of 20%, but now the market sells it at a 10% discount, how much profit can it make?
一件皮衣，如果按原价出售可盈利20%，现在商场降价10%出售，可以盈利多少．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<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">(6/5) * (9/10)</gadget>
<output>27/25 = around 1.08</output>

<gadget id="calculator">(27/25) - 1</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">(2/25) / 1</gadget>
<output>2/25 = around 0.08</output>

<result>2/25 = around 0.08</result>