The statistics at the top of the Detailed reports tab now includes Profit Factor. It is also on the Win/Loss Days tab and the Compare tab, for each trade group.
In gross reporting mode, the profit factor is calculated as
profit factor = gross profits / gross losses
In net reporting mode (for gold subscribers), the profit factor is
profit factor = net profits / net losses
Where net profits and losses are the gross profits/losses, less commissions and fees.