The TV factory produced a total of 2,400 TVs in August, of which 1,500 were color TVs and the rest were black and white TVs. What percentage of the total number of black and white TVs produced by this factory in August?
电视机厂八月份共生产电视机2400台，其中彩电1500台，其余的是黑白电视机．这个厂八月份生产的黑白电视机占电视机总数的几分之几？
<gadget id="calculator">2_400 - 1_500</gadget>
<output>900</output>

<gadget id="calculator">900 / 2_400</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>