public string SaveStockin(StockIn stockIn) { int bigQuantity = stockIn.BigQuantity * 50; int mediumQuantity = stockIn.MediumQuantity * 30; int smallQuantity = stockIn.SmallQuantity * 15; stockIn.TotalQuantity = bigQuantity + mediumQuantity + smallQuantity; if (_stockIn.SaveStockin(stockIn) > 0) { return("Item Entry Successfully"); } return("Item Entry Faild"); }