public void CalcPercAmountOfAmountTest(object amount, object mainamount, object result)
        {
            var assert = Math.Round(
                Percentage.CalculatePercentageAmountOfAmount(
                    Convert.ToDecimal(amount),
                    Convert.ToDecimal(mainamount)), 4);

            Assert.AreEqual(Convert.ToDecimal(result), assert);
        }
        public void CalcPercAmountOfAmountDevideByZeroTest()
        {
            var result = Percentage.CalculatePercentageAmountOfAmount(0m, 0m);

            Assert.AreEqual(0m, result);
        }