It is important to note that end balances in PropReports do not equal cash balances. Because overnight positions create a potential profit or loss, unrealized P&L does not affect cash balances, but do affect end balances. Balances (like the balance seen on the Accounts page) are typically calculated by adding the sum of both the cash balance and the traders current unrealized P%L.
The screenshot below shows how the Balance of a sample account on the Accounts page is calculated:
