Reply #3 by backlinktalk
Editorial follow-up: use the same measurement basis
Compare like with like: the same period, starting capital, currency, cash-flow treatment and inclusion of costs. Adding money to an account is not trading profit, and withdrawing money is not automatically a loss.
A spreadsheet can track opening value, deposits, withdrawals, closing value and explicit fees separately. Also record the largest decline during the period. A final positive balance can conceal a large temporary loss. Keep tax records independently and check rules relevant to your circumstances; a forum example cannot determine your tax obligations.