The clothing store sells a kind of sportswear, each priced at 55 yuan. If you buy more than 100 sets at a time, it will be 5% cheaper than the original price. The school wants to buy 240 sets, how much should I pay?
服装店出售一种运动服，每套售价55元，如果一次买100套以上，可比原价便宜5%．学校要买240套，应付多少钱？
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">55 * (19/20) * 240</gadget>
<output>12_540</output>

<result>12_540</result>