There is a store that sets the price of a product at 120% of the purchase price, but it can't be sold. Later, the boss reduced the price by 20% and sold it at 96 yuan, and he sold it quickly. What is the profit and loss of this business?
有一个商店把某件商品按进价的120%作为定价，可是总卖不出去．后来老板按定价减价20%以96元出售，很快就卖掉了，则这次生意的盈亏情况是亏多少元
<gadget id="calculator">100 - 96</gadget>
<output>4</output>

<result>4</result>