/// <summary>
 /// Compute the Adjusted Benefits based on a person's annual cost of benefits and the discount percentage they recieve
 /// </summary>
 /// <param name="person">Supply a person to check</param>
 /// <returns>a decimal representing the annual cost of benefits</returns>
 public decimal ComputeAdjustedBenefits(IPerson person)
 {
     return(Decimal.Divide((person.BaseAnnualCostOfBenefits * (100 - person.BenefitsDiscountPercentage())), 100));
 }