The price of a down jacket before the Spring Festival was 450 yuan, and now it is sold at 40% off the original price. How much cheaper will it be to buy this down jacket now than before the Spring Festival?
一件羽绒服的春节前是450元，现在按原价的六折出售，现在买这件羽绒服比春节前会便宜多少元？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">450 * (3/5)</gadget>
<output>270</output>

<gadget id="calculator">450 - 270</gadget>
<output>180</output>

<result>180</result>