When Xiaohong was doing the accounting, she found that 71.1 yuan was missing on the account. After investigation, it turned out that the decimal point of a certain sum of money was wrong, so how much is the sum of money?
小红在算账时，发现账面上少了71.1元，经查原来是把某一笔钱的小数点点错了一位，则这笔钱为多少元
<gadget id="calculator">1 - 0.1</gadget>
<output>0.9</output>

<gadget id="calculator">71.1 / 0.9</gadget>
<output>79</output>

<result>79</result>