The original price of a down jacket is 630 yuan, how much is the selling price after a 15% discount?
一件羽绒服原价630元，打八五折后的售价是多少元．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">630 * (17/20)</gadget>
<output>1_071/2 = around 535.5</output>

<result>1_071/2 = around 535.5</result>