public override double CalculatePolicyCover() { if (VehicleCondition.ToLower().Equals("new")) { return(PolicyCover = .90 * VehiclePrice); } else if (VehicleType.ToLower().Equals("good")) { return(PolicyCover = .75 * VehiclePrice); } else if (VehicleType.ToLower().Equals("old")) { return(PolicyCover = .50 * VehiclePrice); } else { return(PolicyCover = 0.0 * VehiclePrice); } }