This is a very common question, so here is a breakdown of the Account Report in DAS. To access the report, navigate to menu Tools > Account Report.
Please note that the commissions assume SureTrader's rate structure, and may not necessarily match your broker's fees. If you plan on using Interactive Brokers, a good estimate of commissions is to multiply number of shares traded (B below) x $0.005.
====================[TOP]====================
[A] Tickets - A Ticket represents any and all executions that result from one order being entered. Regardless of how many partial executions result from one order being sent, only one ticket is generated. One Ticket = one commission.
[b Shares - Number of shares bought/sold and shorted/covered
[C] SEC - Securities and Exchange Commission fee calculated as a percentage of the dollar value of the trade. Read more on Investopedia.
[D] FINRA - Financial Industry Regulatory Authority Trading Activity Fee. Read more.
[E] Trade P&L - Gross profit/loss before any commissions or fees. E = L+C+D+G
[F] Commission - Based on SureTrader's commissions structure. Unsure of exact calculation used; could be $4.95 per round-trip trade (?) Other users who are with IB say it could be using tiered commission rates, or $1/ticket.
[G] ECN - Fee or credit for removing or adding liquidity to the market, respectively. Read more.
[H] Net P&L - Net profit/loss after all commissions and fees. H = E-F-C-D-G, or H = L-F
====================[TOTALS]====================
Total Trades - Total tickets, equal to A above
[J] Bought Shares - Total shares bought/covered
[K] Sold Shares - Total shares sold/shorted
[L] Day-trade P&L - Profit/Loss before commissions, but including ECN, SEC, FINRA. L = E-C-D-G
[M] Total ECN - Equal to G above
[N] Total SEC - Equal to C above
[O] Total FINRA - Equal to D above
In Summary, the value in H is your take home pay/loss at the end of each trading day.