A piece of clothing is 90 yuan cheaper than the original price after a 25% discount. How much is the original price of this dress? What is the correct column
一件衣服，打七五折后比原价便宜90元．这件衣服原价多少元？正确的列式是多少
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">90 / (1/4)</gadget>
<output>360</output>

<result>360</result>