public override void Calculate(ObjectProperties Item, string FieldName, ObjectCalulatorCalculateType CalculateType)
        {
            base.Calculate(Item, FieldName, CalculateType);

            if (CalculateType == ObjectCalulatorCalculateType.Initialize)
            {
                Item.SF("STATE", "ID <> 1");
                TYPE(Item);
                RATE(Item);
            }

            if (CalculateType == ObjectCalulatorCalculateType.Calculate)
            {
                switch (FieldName)
                {
                    case "PRICEFROMAGENT":
                    case "PRICEFORCLIENT":
                        Item.SVC("PROFIT", Item.AsDbl("PRICEFORCLIENT") - Item.AsDbl("PRICEFROMAGENT"));
                        break;
                    case "TYPE":
                        TYPE(Item);
                        break;
                    case "AGENTCURRENCY":
                        RATE(Item);
                        break;
                    case "PROFIT":
                        Item.SS("PROFIT", CalulatorFieldState.Manual);
                        break;
                }
            }
        }