The sales chart and the data you see in your sales report (Finance tab) can often be different: the discrepancy is caused by the fact that not all stores close the month at the same time. While the Sales tab displays the latest sales, it is possible that some stores have already closed the month (before the actual end of the month) and have forwarded us the report and royalties. You can see all these details in your sales report. Any royalties that have not been forwarded yet will be sent during the following month, and you will be able to track them in the next month's sales report.
It's important to know that the live sales you see under the Sales tab are subject to changes and temporary lags, and they only serve an informative purpose. It isn't a complete list and it doesn't take into account when each of the stores forward us the royalties. Payments are always made based on the sales reports, not the sales chart.