Trade size calculator

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

namespace cAlgo
{
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class TradeSize : Indicator
    {
        [Parameter("Risk Percentage", Group = "Risk", DefaultValue = 1, MinValue = 0.5, MaxValue = 5, Step = 0.5)]
        public double RiskPercentage { get; set; }

        [Parameter("ATR Stoploss multiplyer", Group = "Risk", DefaultValue = 2, MinValue = 1, MaxValue = 20, Step = 1)]
        public int ATRMultiplyer { get; set; }

        [Parameter("Periods", Group = "ATR Params", DefaultValue = 14, MinValue = 1)]
        public int Periods { get; set; }

        [Parameter("Moving Average Type", Group = "ATR Params", DefaultValue = MovingAverageType.Exponential)]
        public MovingAverageType maType { get; set; }

        public IndicatorDataSeries Result;

        private AverageTrueRange atr;

        protected override void Initialize()
        {
            atr = Indicators.AverageTrueRange(Periods, maType);
            Result = CreateDataSeries();
        }

        public override void Calculate(int index)
        {

            double RiskAmount = (Account.Balance * RiskPercentage) / 100;

            double RiskPerUnit = ATRMultiplyer * getATRPips() * Symbol.PipValue;

            double RiskUnits = RiskAmount / RiskPerUnit;

            Result[index] = Symbol.NormalizeVolumeInUnits(RiskUnits);
            string Text = "Trade Size(Lots) : " + Result[index] / Symbol.LotSize + "\n";
            Text += "Trade Size(Units) : " + Result[index] + "\n";
            Text += "Desired Risk Amount : " + RiskAmount + "\n";
            Text += "Calculated Risk Amount : " + (Symbol.NormalizeVolumeInUnits(RiskUnits) * RiskPerUnit + "\n");
            Text += "Stop Loss Pips : " + ATRMultiplyer * getATRPips();
            Chart.DrawStaticText("Symbols", Text, VerticalAlignment.Top, HorizontalAlignment.Left, Color.White);
        }

        private double getATRPips()
        {
            return atr.Result.LastValue / Symbol.PipSize;
        }
    }
}