How To Calculate Williams %R in Go?

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package main

import (
    "fmt"
)

func williamsR(high []float64, low []float64, close []float64, period int) []float64 {
    var result []float64

    for i := period; i < len(high); i++ {
        highestHigh := findMax(high[i-period : i])
        lowestLow := findMin(low[i-period : i])
        wR := ((highestHigh - close[i]) / (highestHigh - lowestLow)) * -100
        result = append(result, wR)
    }

    return result
}

func findMax(arr []float64) float64 {
    max := arr[0]
    for _, value := range arr {
        if value > max {
            max = value
        }
    }
    return max
}

func findMin(arr []float64) float64 {
    min := arr[0]
    for _, value := range arr {
        if value < min {
            min = value
        }
    }
    return min
}

func main() {
    high := []float64{10.0, 12.0, 14.0, 15.0, 16.0, 14.0, 12.0}
    low := []float64{8.0, 10.0, 12.0, 13.0, 14.0, 12.0, 10.0}
    close := []float64{9.0, 11.0, 13.0, 14.0, 15.0, 13.0, 11.0}
    period := 5

    result := williamsR(high, low, close, period)
    fmt.Println("Williams %R values:", result)
}