Mingming's mother bought a soymilk machine, she paid the salesperson's auntie 8 pieces of RMB 50, and got back 14 yuan. How much is this soybean milk machine?
明明的妈妈买了一台豆浆机，她付给售货员阿姨8张50元的人民币，找回14元．这台豆浆机多少钱？
<gadget id="calculator">50 * 8</gadget>
<output>400</output>

<gadget id="calculator">400 - 14</gadget>
<output>386</output>

<result>386</result>