diff --git a/application/models/Item.php b/application/models/Item.php
index 46de993c4..f5e47771d 100644
--- a/application/models/Item.php
+++ b/application/models/Item.php
@@ -102,7 +102,7 @@ class Item extends CI_Model
 		if($filters['stock_location_id'] > -1) {
 			$this->db->select('max(item_quantities.item_id) as qty_item_id');
 			$this->db->select('max(item_quantities.location_id) as location_id');
-			$this->db->select('sum(item_quantities.quantity) as quantity');
+			$this->db->select('max(item_quantities.quantity) as quantity');
 		}
 
 		$this->db->from('items as items');
diff --git a/application/models/Sale.php b/application/models/Sale.php
index 5bc2b0a62..993e51a7d 100644
--- a/application/models/Sale.php
+++ b/application/models/Sale.php
@@ -163,8 +163,8 @@ class Sale extends CI_Model
 				ROUND($sale_cost, $decimals) AS cost,
 				ROUND($sale_total - IFNULL($sale_tax, 0) - $sale_cost, $decimals) AS profit,
 				IFNULL(ROUND($sale_total, $decimals), ROUND($sale_subtotal, $decimals)) AS amount_due,
-				SUM(payments.sale_payment_amount) AS amount_tendered,
-				(SUM(payments.sale_payment_amount) - IFNULL(ROUND($sale_total, $decimals), ROUND($sale_subtotal, $decimals))) AS change_due,
+				MAX(payments.sale_payment_amount) AS amount_tendered,
+				(MAX(payments.sale_payment_amount) - IFNULL(ROUND($sale_total, $decimals), ROUND($sale_subtotal, $decimals))) AS change_due,
 				" . '
 				MAX(payments.payment_type) AS payment_type
 		');