Xiao Wang bought a piece of clothing, which was 20% cheaper than the original price, which was exactly 80 yuan cheaper. How much did Xiao Wang pay for this piece of clothing?
小王买了一件衣服，比原价便宜20%，正好便宜80元，小王花了多少钱买了这件衣服？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">80 / (1/5)</gadget>
<output>400</output>

<gadget id="calculator">400 - 80</gadget>
<output>320</output>

<result>320</result>