The decimal point of a number is moved one place to the right, which is 79.92 larger than the original number. What is the decimal number?
一个数的小数点向右移动一位，比原数大79.92，这个小数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">79.92 / 9</gadget>
<output>8.88</output>

<result>8.88</result>