There is a difference in the indicator's values between cTrader and Tradingview for the same indicator when compared on each platform for Gold (XAUUSD) but not as much for Nasdaq 100 (#USNDAQ100) taking into consideration that the price differences for gold between each platform is negligible , as you can see in the following photos :
1- the value of the indicator = 0.0074 on ctrader for gold , but the value at the same candlestick on the same timeframe for gold on tradingview = 2.3646 which is a large difference for gold

2- the value of the indicator = 38.7609 on ctrader for NASDAQ100 , but the value at the same candlestick on the same timeframe for NASDAQ100 on tradingview = 39.5133 , which is a small difference for NASDAQ100

why is it different for gold but not for NASDAQ100 ? And how can i make the difference in gold as small as possible ?

This is the cTrader indicator code : 
`using System;
using cAlgo.API;
using cAlgo.API.Collections;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;

namespace cAlgo
{
    [Indicator(AccessRights = AccessRights.None , ScalePrecision = 4)]
    public class bullbearpowerupdatedcode : Indicator
    {
        [Parameter(DefaultValue = 9)]
        public int Periods { get; set; }

        [Output("BBPhisto", LineColor = "Gray", PlotType = PlotType.Histogram)]
        public IndicatorDataSeries BBPhisto { get; set; }
        
        [Output("BBP Green histo", LineColor = "Green", PlotType = PlotType.Histogram)]
        public IndicatorDataSeries BBPGreenhisto { get; set; }
        
        [Output("BBP Red histo", LineColor = "Red", PlotType = PlotType.Histogram)]
        public IndicatorDataSeries BBPRedhisto { get; set; }
        
        private MovingAverage Hullopen;
        private MovingAverage HullHigh;
        private MovingAverage HullLow;
 
 
        protected override void Initialize()
        {

             Hullopen = Indicators.MovingAverage(Bars.OpenPrices, Periods, MovingAverageType.Hull);
             HullHigh = Indicators.MovingAverage(Bars.HighPrices, Periods, MovingAverageType.Hull);
             HullLow = Indicators.MovingAverage(Bars.LowPrices, Periods, MovingAverageType.Hull);
        }

        public override void Calculate(int index)
        {
     var bullpower = HullHigh.Result[index] - Hullopen.Result[index];
        var bearpower = HullLow.Result[index] - Hullopen.Result[index];

            BBPhisto[index] = bullpower + bearpower ; 

            if (BBPhisto[index] > 0)
            {
                BBPGreenhisto[index] = BBPhisto[index];
                BBPRedhisto[index] = 0;
            }
            else
            {
                BBPGreenhisto[index] = 0;
                BBPRedhisto[index] = BBPhisto[index];
        }
    }
}
}`