diff --git a/erpnext/projects/report/project_profitability/project_profitability.py b/erpnext/projects/report/project_profitability/project_profitability.py
index 5ad2d85..9139d84 100644
--- a/erpnext/projects/report/project_profitability/project_profitability.py
+++ b/erpnext/projects/report/project_profitability/project_profitability.py
@@ -4,6 +4,7 @@
 from __future__ import unicode_literals
 import frappe
 from frappe import _
+from frappe.utils import flt
 
 def execute(filters=None):
 	columns, data = [], []
@@ -52,8 +53,8 @@
 
 def calculate_cost_and_profit(data):
 	for row in data:
-		row.fractional_cost = row.base_gross_pay * row.utilization
-		row.profit = row.base_grand_total - row.base_gross_pay * row.utilization
+		row.fractional_cost = flt(row.base_gross_pay) * flt(row.utilization)
+		row.profit = flt(row.base_grand_total) - flt(row.base_gross_pay) * flt(row.utilization)
 	return data
 
 def get_conditions(filters):
diff --git a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
index 0ee6dc7..7e216d6 100644
--- a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
+++ b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
@@ -72,7 +72,7 @@
 
 				if item_dict.get("serial_nos"):
 					item.current_serial_no = item_dict.get("serial_nos")
-					if self.purpose == "Stock Reconciliation":
+					if self.purpose == "Stock Reconciliation" and not item.serial_no:
 						item.serial_no = item.current_serial_no
 
 				item.current_qty = item_dict.get("qty")