The current price of a coat is 98 yuan, which is 30% lower than the original price. How much is the original dress?
一件外衣，现价98元，比原来降低了30%，原来这件衣服多少元？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">98 / (7/10)</gadget>
<output>140</output>

<result>140</result>