An accountant found that the money was 12.6 yuan more during the checkout. He thought that there might be a wrong decimal point in an account. If the receipt account was wrong, which data in the income account should I look for? If the expense account is wrong, which data in the expense account should I find?
一名会计，在结账时发现钱多了12.6元，他想可能有一笔账记错了一位小数点，如果收人账搞错了，那该找收入账中的哪个数据？如果支出账错了，那该找支出账中的哪个数据？
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">12.6 / 9</gadget>
<output>1.4</output>

<result>1.4</result>