If the decimal point of a two-digit decimal is removed, the difference between the new number obtained and the original number is 39.6, what is the original two-digit decimal?
把一个两位小数的小数点去掉，得到的新数与原来的数相差39.6，那么原来的两位小数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">39.6 / 9</gadget>
<output>4.4</output>

<result>4.4</result>