The original price of a rice cooker is 200 yuan, but the current price is 160 yuan. How much is the price cut?
一个电饭煲原价200元，现价160元，降价了百分之几？
<gadget id="calculator">200 - 160</gadget>
<output>40</output>

<gadget id="calculator">40 / 200</gadget>
<output>1/5 = around 0.2</output>

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