diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 30e8e03..b578ac2 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -349,4 +349,5 @@
 erpnext.patches.v7_1.update_invoice_status
 erpnext.patches.v7_0.po_status_issue_for_pr_return
 erpnext.patches.v7_1.update_missing_salary_component_type
-erpnext.patches.v7_0.update_autoname_field
\ No newline at end of file
+erpnext.patches.v7_0.update_autoname_field
+erpnext.patches.v7_0.update_status_of_po_so
\ No newline at end of file
diff --git a/erpnext/patches/v7_0/update_status_of_po_so.py b/erpnext/patches/v7_0/update_status_of_po_so.py
new file mode 100644
index 0000000..0e2dd74
--- /dev/null
+++ b/erpnext/patches/v7_0/update_status_of_po_so.py
@@ -0,0 +1,62 @@
+# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.utils import cint, flt
+
+def execute():
+	update_po_per_received_per_billed()
+	update_so_per_delivered_per_billed()
+	update_status()
+
+def update_po_per_received_per_billed():
+	frappe.db.sql(""" 
+		update
+			`tabPurchase Order`
+		set
+			`tabPurchase Order`.per_received = round((select sum(if(qty > ifnull(received_qty, 0),
+					ifnull(received_qty, 0), qty)) / sum(qty) *100 from `tabPurchase Order Item`
+					where parent = `tabPurchase Order`.name), 2),
+			`tabPurchase Order`.per_billed = round((select sum( if(amount > ifnull(billed_amt, 0),
+					ifnull(billed_amt, 0), amount)) / sum(amount) *100 from `tabPurchase Order Item`
+					where parent = `tabPurchase Order`.name), 2)""")
+
+def update_so_per_delivered_per_billed():
+	frappe.db.sql(""" 
+		update
+			`tabSales Order`
+		set 
+			`tabSales Order`.per_delivered = round((select sum( if(qty > ifnull(delivered_qty, 0),
+					ifnull(delivered_qty, 0), qty)) / sum(qty) *100 from `tabSales Order Item` 
+					where parent = `tabSales Order`.name), 2), 
+			`tabSales Order`.per_billed = round((select sum( if(amount > ifnull(billed_amt, 0),
+					ifnull(billed_amt, 0), amount)) / sum(amount) *100 from `tabSales Order Item`
+					where parent = `tabSales Order`.name), 2)""")
+
+def update_status():
+	frappe.db.sql("""
+		update
+			`tabSales Order`
+		set status = (Case when status = 'Closed' then 'Closed'
+			When per_delivered < 100 and per_billed < 100 and docstatus = 1 then 'To Deliver and Bill'
+			when per_delivered = 100 and per_billed < 100 and docstatus = 1 then 'To Bill'
+			when per_delivered < 100 and per_billed = 100 and docstatus = 1 then 'To Deliver'
+			when per_delivered = 100 and per_billed = 100 and docstatus = 1 then 'Completed'
+			when order_type = 'Maintenance' and per_billed = 100 and docstatus = 1 then 'Completed'
+			when docstatus = 2 then 'Cancelled'
+			else 'Draft'
+		End)""")
+
+	frappe.db.sql("""
+		update 
+			`tabPurchase Order` 
+		set status = (Case when status = 'Closed' then 'Closed'
+			when status = 'Delivered' then 'Delivered'
+			When per_received < 100 and per_billed < 100 and docstatus = 1 then 'To Receive and Bill'
+			when per_received = 100 and per_billed < 100 and docstatus = 1 then 'To Bill'
+			when per_received < 100 and per_billed = 100 and docstatus = 1 then 'To Receive'
+			when per_received = 100 and per_billed = 100 and docstatus = 1 then 'Completed'
+			when docstatus = 2 then 'Cancelled'
+			else 'Draft'
+		End)""")
\ No newline at end of file