using System;

​

public class Program

{

    public static void Main()

    {

        var allocatedAmount = 3500123.33M;

        var rate = .17M;

        var tenor = 93M;

        var rateBasis = 360;

        var exponent = (tenor / rateBasis);

​

        var baseValue = 1 + rate;

        var doubleResult = Math.Pow((double)baseValue, (double)exponent); //Find power using Math.Pow

        Console.WriteLine(string.Format("{0,-30}", "Math.Pow = ") + doubleResult);

        var decimalResult = DecimalMath.DecimalEx.Pow(baseValue, exponent);

        Console.WriteLine(string.Format("{0,-30}", "DecimalMath.DecimalEx.Pow = ") + decimalResult);

        var doubleMultiplier = 1D / doubleResult;

        var decimalMultiplier = 1M / decimalResult;

        Console.WriteLine(doubleMultiplier);

        Console.WriteLine(decimalMultiplier);

        var doublePP = (double)allocatedAmount * doubleMultiplier;

        Console.WriteLine(string.Format("{0,-30}", "Double PurchasePrice = ") + doublePP);

        var decimalPP = allocatedAmount * decimalMultiplier;

        Console.WriteLine (string.Format("{0,-30}", "Decimal Purchase Price = ") + decimalPP);

    }

}