How the numbers are worked out

The definitions, so you can check any figure by hand.

Figure	Definition
Net P&L	Profit after spread and commission.
Win rate	Winning trades ÷ all closed trades, breakeven included.
Expectancy	Average net result per trade. The R version is the mean R over trades that had a stop-loss.
Profit factor	Gross profit ÷ gross loss. With profit and no loss it says so instead of printing infinity.
Payoff ratio	Average win ÷ average loss.
R	Net result ÷ the risk to the stop-loss at entry, costs included. No stop-loss, no R.
Planned R	Distance to the take-profit ÷ distance to the stop, from the bracket live at close.
Max against / for	Maximum adverse and favourable excursion in R, from the replay's price path.
Balance and drawdown	Closed-trade balance. One curve feeds the profit chart, the balance figure and the drawdown, so they cannot disagree. A drawdown runs from a peak until the peak is regained.
Combined balance	With several sessions in view, the sum of their starting balances.
Trade frequency	Trades ÷ the days, weeks and months in which you traded, so a quiet month does not drag it down.

Sample sizes are shown beside grouped figures (n=4) and thin groups are drawn paler. The app does not compute Sharpe, Sortino or Kelly: on the small samples a replay produces they are noise dressed as precision.