using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var deductibles = new List<decimal> {2.47m, 4.13m, 1.33m};

        var t1 = TotalDeductibleDollarAmount1(deductibles);

        var t2 = TotalDeductibleDollarAmount2(deductibles);

        Console.WriteLine(t1);

        Console.WriteLine(t2);

    }

​

    public static int TotalDeductibleDollarAmount1(List<decimal> deductibles)

    {

        decimal total = 0;

        foreach (var deductible in deductibles)

        {

            total += deductible;

        }

        return Convert.ToInt32(total);

    }

    public static int TotalDeductibleDollarAmount2(List<decimal> deductibles)

    {

        return (int)deductibles.Sum();

    }

}

​