The original price of a pair of badminton rackets is 360 yuan. Now you can buy it at 25% off the original price. How much cheaper can it be?
一副羽毛球拍原价360元，现按原价的七五折购买，可以便宜多少元．
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">360 * (3/4)</gadget>
<output>270</output>

<gadget id="calculator">360 - 270</gadget>
<output>90</output>

<result>90</result>