The Huaxia Mall is running a promotion. The original price of a sweater is 300 yuan, but the current price is 240 yuan. How much is the reduction?
华夏商场搞促销，一件毛衣原价300元，现价240元，降低了百分之几？
<gadget id="calculator">300 - 240</gadget>
<output>60</output>

<gadget id="calculator">60 / 300</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>