A number is first reduced by 10 times, and the decimal point is moved two places to the right, which is 4.08. What is the original number?
有一个数先缩小10倍，小数点再向右移动两位是4.08，原来这个数是多少．
<gadget id="calculator">4.08 / 100</gadget>
<output>0.0408</output>

<gadget id="calculator">0.0408 * 10</gadget>
<output>0.408</output>

<result>0.408</result>