The PNL Analysis page allows users to generate reports and statistics about the profit and loss of the account. This includes a summary, the total account value over time, cummulative fees, transfers, and trade PNL (both overall and broken down by instrument).
The PNL Analysis page can be found in the main menu when logged into Deribit, or directly here: https://www.deribit.com/account/BTC/pnl