Mom bought a pressure cooker for 200 yuan, and got back 12.4 yuan. How much is this pressure cooker?
妈妈用200元买了一只高压锅，找回12.4元，这只高压锅多少元？
<gadget id="calculator">200 - 12.4</gadget>
<output>187.6</output>

<result>187.6</result>