You're in the right place for explanation, @VinD.
I'm pleased to explain why you saw a second negative number in your QuickBooks Online transaction list. This way, I can guide you accordingly.
The amount (negative and positive) you saw beside the invoice in the search results indicates credit and debit. There is nothing to worry about because it will not ruin your transaction reports and books.
In addition, you can click the Advanced Search button to filter the list of transactions. For more information, check out this link: How to search for transactions in QuickBooks Online.
Also, our Community Help Articles related to your account and company management allow you to browse for references while working with us. In this reference, you're able to read through the steps commonly used to review and configure your accounts and settings.
If there's anything else that I can help you with aside from how you can work well with QuickBooks, please let me know by leaving any comments below. I'll be here to lend a hand. Stay safe, VinD.
