How To Calculate Williams %R using Kotlin?

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fun williamsPercentR(highs: List<Double>, lows: List<Double>, closes: List<Double>, period: Int): List<Double> {
    val result = mutableListOf<Double>()

    for (i in period - 1 until highs.size) {
        val highestHigh = highs.subList(i - period + 1, i + 1).maxOrNull() ?: 0.0
        val lowestLow = lows.subList(i - period + 1, i + 1).minOrNull() ?: 0.0
        val currentClose = closes[i]

        val percentR = ((highestHigh - currentClose) / (highestHigh - lowestLow)) * -100
        result.add(percentR)
    }

    return result
}