feat: Return tracking in PR/DN
diff --git a/erpnext/controllers/sales_and_purchase_return.py b/erpnext/controllers/sales_and_purchase_return.py
index 3f127a2..1085486 100644
--- a/erpnext/controllers/sales_and_purchase_return.py
+++ b/erpnext/controllers/sales_and_purchase_return.py
@@ -207,6 +207,7 @@
 	from frappe.model.mapper import get_mapped_doc
 	company = frappe.db.get_value("Delivery Note", source_name, "company")
 	default_warehouse_for_sales_return = frappe.db.get_value("Company", company, "default_warehouse_for_sales_return")
+
 	def set_missing_values(source, target):
 		doc = frappe.get_doc(target)
 		doc.is_return = 1
diff --git a/erpnext/controllers/status_updater.py b/erpnext/controllers/status_updater.py
index 0dc9878..bf69130 100644
--- a/erpnext/controllers/status_updater.py
+++ b/erpnext/controllers/status_updater.py
@@ -65,6 +65,7 @@
 	"Purchase Receipt": [
 		["Draft", None],
 		["To Bill", "eval:self.per_billed < 100 and self.docstatus == 1"],
+		["Return Issued", "eval:self.per_returned == 100 and self.docstatus == 1"],
 		["Completed", "eval:self.per_billed == 100 and self.docstatus == 1"],
 		["Cancelled", "eval:self.docstatus==2"],
 		["Closed", "eval:self.status=='Closed'"],
@@ -232,7 +233,7 @@
 
 			self._update_children(args, update_modified)
 
-			if "percent_join_field" in args:
+			if "percent_join_field" in args or "percent_join_field_parent" in args:
 				self._update_percent_field_in_targets(args, update_modified)
 
 	def _update_children(self, args, update_modified):
@@ -272,13 +273,19 @@
 
 	def _update_percent_field_in_targets(self, args, update_modified=True):
 		"""Update percent field in parent transaction"""
-		distinct_transactions = set([d.get(args['percent_join_field'])
-			for d in self.get_all_children(args['source_dt'])])
+		if args.get('percent_join_field_parent'):
+			# if reference to target doc where % is to be updated, is
+			# in source doc's parent form, consider percent_join_field_parent
+			args['name'] = self.get(args['percent_join_field_parent'])
+			self._update_percent_field(args, update_modified)
+		else:
+			distinct_transactions = set([d.get(args['percent_join_field'])
+				for d in self.get_all_children(args['source_dt'])])
 
-		for name in distinct_transactions:
-			if name:
-				args['name'] = name
-				self._update_percent_field(args, update_modified)
+			for name in distinct_transactions:
+				if name:
+					args['name'] = name
+					self._update_percent_field(args, update_modified)
 
 	def _update_percent_field(self, args, update_modified=True):
 		"""Update percent field in parent transaction"""