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class PullbackToProfit { settable double pullback; settable double profit; settable long startTime; settable long timestamp; double cleanness() { ret profit() <= 0 ? 0 : profit()/pullback(); } toString { var duration = formatMinutes(timestamp()-startTime()); ret shortenNumbers(2, concat("Callback ", pullback(), "% yields ", profit(), "% profit in ", duration, " (cleanness ", formatDouble1(cleanness()), ")")); } bool replaces(PullbackToProfit ptp) { ret pullback() <= ptp.pullback() && profit() >= ptp.profit(); } }