The original price of a drug is 64.8 yuan, and now the price has been reduced by 15%. How much is the current price?
一种药品原价是64.8元，现在降价15%，现在的售价是多少元？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">64.8 * (17/20)</gadget>
<output>55.08</output>

<result>55.08</result>