The price of an induction cooker in Sunshine Supermarket is 320 yuan, which is 80 yuan cheaper than the original price. How much is the price of the induction cooker reduced?
阳光超市一种电磁炉的售价是320元，比原价便宜80元，电磁炉的价格降低了百分之几？
<gadget id="calculator">320 + 80</gadget>
<output>400</output>

<gadget id="calculator">80 / 400</gadget>
<output>1/5 = around 0.2</output>

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