The original price of a rice cooker is 220 yuan, but the current price is 154 yuan. How much is the price of the rice cooker reduced by?
一个电饭煲原价220元，现价154元，电饭煲的价格降低了百分之几？
<gadget id="calculator">220 - 154</gadget>
<output>66</output>

<gadget id="calculator">66 / 220</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>