How To Compute Stochastic Oscillator using C#?

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using System;
using System.Collections.Generic;

class StochasticOscillator
{
    public static List<double> ComputeStochasticOscillator(List<double> closingPrices, int period)
    {
        List<double> stochasticOscillator = new List<double>();

        for (int i = period; i < closingPrices.Count; i++)
        {
            double minPrice = closingPrices.GetRange(i - period, period).Min();
            double maxPrice = closingPrices.GetRange(i - period, period).Max();

            double currentPrice = closingPrices[i];
            
            double stochasticValue = ((currentPrice - minPrice) / (maxPrice - minPrice)) * 100;
            
            stochasticOscillator.Add(stochasticValue);
        }

        return stochasticOscillator;
    }

    static void Main()
    {
        List<double> closingPrices = new List<double> { 10, 12, 15, 14, 16, 18, 20, 22, 24, 25, 28, 30 };
        int period = 5;
        
        List<double> stochasticOscillator = ComputeStochasticOscillator(closingPrices, period);

        foreach (var value in stochasticOscillator)
        {
            Console.WriteLine(value);
        }
    }
}