diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index cb8f4e6..3023a9f 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -880,7 +880,7 @@
 	},
 	
 	set_gross_profit: function(item) {
-		if (this.frm.doc.doctype == "Sales Order") {
+		if (this.frm.doc.doctype == "Sales Order" && item.valuation_rate) {
 			item.gross_profit = flt((((item.rate - item.valuation_rate) * item.qty) * (this.frm.doc.conversion_rate || 1)), precision("amount", item));
 		}
 	}
diff --git a/erpnext/selling/sales_common.js b/erpnext/selling/sales_common.js
index ef9cadc..05a5387 100644
--- a/erpnext/selling/sales_common.js
+++ b/erpnext/selling/sales_common.js
@@ -136,7 +136,7 @@
 		} else {
 			this.price_list_rate(doc, cdt, cdn);
 		}
-		this.gross_profit(item);
+		this.set_gross_profit(item);
 	},
 
 	commission_rate: function() {
diff --git a/erpnext/stock/get_item_details.py b/erpnext/stock/get_item_details.py
index 9b61c00..a98a25a 100644
--- a/erpnext/stock/get_item_details.py
+++ b/erpnext/stock/get_item_details.py
@@ -44,6 +44,8 @@
 
 	if out.get("warehouse"):
 		out.update(get_bin_details(args.item_code, out.warehouse))
+	else:
+		out.update(get_valuation_rate(args.item_code))
 
 	get_price_list_rate(args, item_doc, out)
 
@@ -167,8 +169,7 @@
 		"net_amount": 0.0,
 		"discount_percentage": 0.0,
 		"supplier": item.default_supplier,
-		"delivered_by_supplier": item.delivered_by_supplier,
-		"valuation_rate": get_bin_details(item.name, warehouse)
+		"delivered_by_supplier": item.delivered_by_supplier
 	})
 
 	# if default specified in item is for another company, fetch from company
@@ -359,7 +360,8 @@
 @frappe.whitelist()
 def get_bin_details(item_code, warehouse):
 	return frappe.db.get_value("Bin", {"item_code": item_code, "warehouse": warehouse},
-		["projected_qty", "actual_qty", "valuation_rate"], as_dict=True) or {"projected_qty": 0, "actual_qty": 0}
+		["projected_qty", "actual_qty", "valuation_rate"], as_dict=True) \
+		or {"projected_qty": 0, "actual_qty": 0, "valuation_rate": 0}
 
 @frappe.whitelist()
 def get_batch_qty(batch_no,warehouse,item_code):
@@ -469,11 +471,17 @@
 		else:
 			frappe.throw(_("No default BOM exists for Item {0}").format(item_code))
 			
+def get_valuation_rate(item_code):
+	valuation_rate =frappe.db.sql("""select sum(base_net_amount) / sum(qty) from `tabPurchase Invoice Item` 
+		where item_code = %s and docstatus=1""", item_code)
+		
+	if valuation_rate:
+		return {"valuation_rate": valuation_rate[0][0]}
 			
 def get_gross_profit(out):
-	if isinstance(out.valuation_rate, dict): return out
+	if out.valuation_rate:
+		out.update({
+			"gross_profit": ((out.base_rate - out.valuation_rate) * out.qty)
+		})
 	
-	out.update({
-		"gross_profit": ((out.base_rate - out.valuation_rate) * out.qty)
-	})
 	return out