internal decimal CalculateInstalmentAdministrationFee(decimal marketValue, ExecuteContext context) { var setting = this.GetHistorySetting(_owner, context); var currencyRate = setting.Item1; var instalmentPolicyDetail = setting.Item2; return(FeeCalculator.CaculateInstalmentAdministrationFee(marketValue, _owner.Lot, instalmentPolicyDetail, currencyRate)); }