You’re about to open a trade. Your EA flashes a signal. Stop-loss: 45 pips. Risk: 1% of $18k account = $180. Pair: GBP/JPY. You punch the numbers into your calculator. Lot size: 0.22? Wait, is GBP/JPY a JPY pair? Pip value $9.02 or $0.0902? You guess wrong. Enter with 0.22 lots. Trade loses. Loss: –…
