The Portfolio View shows the current real-time Account Value. It includes security price movements, security transfers, other bookings, and foreign exchange currency movements on securities denominated in another currency other than Account Currency.
Using the figures in the screenshot above, the Account Value is the sum of Cash and Value of Positions.
The Cash is adjusted by transactions not booked, and the Value of Positions is adjusted by the P/L of margin positions and the cost to close:
Read more on the Account Value.