public StockVoucherPayload(StockCountItem sci, IStockManagementService stockManagementService)
 {
     ItemID        = sci.ItemID;
     ItemName      = sci.ItemName;
     UnitOfMeasure = sci.UnitOfMeasure;
     QtyInStock    = sci.QtyInStock;
     UnitCost      = stockManagementService.getUnitCostOfItem(ItemID);
 }