diff --git a/buying/utils.py b/buying/utils.py
index f4fb2f3..ce81b6b 100644
--- a/buying/utils.py
+++ b/buying/utils.py
@@ -98,8 +98,8 @@
 			from utilities.transaction_base import validate_currency
 			validate_currency(args, item_bean.doc, meta)
 				
-			out.import_ref_rate = \
-				flt(price_list_rate[0].ref_rate * args.plc_conversion_rate / args.conversion_rate)
+			out.import_ref_rate = flt(price_list_rate[0].ref_rate) * \
+				flt(args.plc_conversion_rate) / flt(args.conversion_rate)
 		
 	# if not found, fetch from last purchase transaction
 	if not out.import_ref_rate: