If you sell a piece of clothing for 100 yuan, you can earn 25%; if you sell it for 110 yuan, what percentage can you earn?
一件衣服，若卖100元，可赚25%；若卖110元，则可以赚百分之多少？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">100 / (5/4)</gadget>
<output>80</output>

<gadget id="calculator">110 - 80</gadget>
<output>30</output>

<gadget id="calculator">30 / 80</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>