Next to a user's progress bar in User management, you will see three different numbers indicating a user's orders, payments, and balance due from left to right.
Selecting the leftmost number will open this user's "Cart" tab to view all products ordered, as shown below. If this order is green, this means that the product is paid for in full. If the product is grey, some or all of the product's balance is still outstanding. In the image below, you can see that the product labeled 'Test' is green and paid for with the date of payment displayed. However, the product labeled 'Tuition' is grey and therefore is not paid for in full.
Selecting the second number will display the total amount paid by the user. This will include all payments made as well as any errors and refunds connected to this user's payments. This gives you a full picture of all attempts the user made to pay as it will be displayed in chronological order. The left column shows the payment designation of each transaction.
The rightmost number is the user's total and current outstanding balance. Note that you can also click the "Autobill" tab and view any automatic payment plans the user is enrolled in and view upcoming payment dates for that user. You can also filter by users who have an outstanding balance to send payment reminder emails.