Function slPriceToPercentShift

Convert an absolute stop-loss price to a percentShift for commitTrailingStop.

percentShift = newSlDistancePercent - originalSlDistancePercent

The new distance is SIGNED by position direction (mirrors how ClientStrategy applies the shift): a stop-loss moved past the entry into the profit zone produces a negative distance, so any target price is expressible — slPercentShiftToPrice(slPriceToPercentShift(x, ...), ...) === x holds for targets on both sides of the entry.

LONG: newSlDistancePercent = (effectivePriceOpen - newStopLossPrice) / effectivePriceOpen * 100 SHORT: newSlDistancePercent = (newStopLossPrice - effectivePriceOpen) / effectivePriceOpen * 100

Example

// LONG: entry=100, originalSL=90, desired newSL=95
const shift = slPriceToPercentShift(95, 90, 100, "long"); // -5
// LONG: entry=100, originalSL=90, desired newSL=105 (profit zone)
const shiftProfit = slPriceToPercentShift(105, 90, 100, "long"); // -15
await commitTrailingStop("BTCUSDT", shift, currentPrice);
  • slPriceToPercentShift(
        newStopLossPrice: number,
        originalStopLossPrice: number,
        effectivePriceOpen: number,
        position: "long" | "short",
    ): number

    Parameters

    • newStopLossPrice: number

      Desired absolute stop-loss price

    • originalStopLossPrice: number

      Original stop-loss price from the pending signal

    • effectivePriceOpen: number

      Effective entry price (from getPositionEffectivePrice)

    • position: "long" | "short"

      Position direction: "long" or "short"

    Returns number

    percentShift to pass to commitTrailingStop

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