The original price of a piece of clothing is 100 yuan, and the price is increased by 20% after being sold at a 20% discount. How much is the price at this time less than the original price?
一件衣服原价100元，打八折销售后又提价20%，此时的售价与原价相比是少多少元
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<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">100 * (4/5) * (6/5)</gadget>
<output>96</output>

<gadget id="calculator">100 - 96</gadget>
<output>4</output>

<result>4</result>