public void GivenAnnualPremiumAndMonthWhenAnnualPremiumAndMonthIsPresentThenReturnInitialMonthlyPaymentAmount() { // Arrange var annualPremium = 50; var months = 12; var premiumCalculator = new PremiumCalculator(); // Act var initialMonthlyPaymentAmount = premiumCalculator.CalculateInitialMonthlyPaymentAmount(annualPremium, months); // Assert Assert.AreEqual(4.43M, initialMonthlyPaymentAmount); }