The price of an electrical appliance is reduced by 20% for the first time, and the price is reduced by 15% for the second time after the price reduction of the first production, supply and marketing. How much is the price of this batch of electrical appliances lower than before?
一种电器商品，第一次降价20%，第二次按第一产供销降价后的价格又降价15%，这批电器商品的价格现在比原来降低了多少．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>