diff --git a/commerce_discount.rules.inc b/commerce_discount.rules.inc
index 8b19e29..beb56fd 100644
--- a/commerce_discount.rules.inc
+++ b/commerce_discount.rules.inc
@@ -1287,10 +1287,12 @@ function commerce_discount_add_price_component(EntityDrupalWrapper $line_item_wr
 
   // Calculate the updated amount and create a price array representing the
   // difference between it and the current amount.
-  $updated_amount = commerce_round(COMMERCE_ROUND_HALF_UP, $current_amount + $discount_amount['amount']);
+  $discount_amount['amount'] = commerce_round(COMMERCE_ROUND_HALF_DOWN, $discount_amount['amount']);
+
+  $updated_amount = $current_amount + $discount_amount['amount'];
 
   $difference = array(
-    'amount' => commerce_round(COMMERCE_ROUND_HALF_UP, $discount_amount['amount']),
+    'amount' => $discount_amount['amount'],
     'currency_code' => $discount_amount['currency_code'],
     'data' => array(
       'discount_name' => $discount_name,
diff --git a/commerce_discount.test b/commerce_discount.test
index 5aa3d7f..4742bd2 100644
--- a/commerce_discount.test
+++ b/commerce_discount.test
@@ -624,6 +624,40 @@ class CommerceDiscountTest extends CommerceDiscountTestBase {
   }
 
   /**
+   * Test rounding in discounts.
+   *
+   * @link https://www.drupal.org/node/2468943
+   */
+  public function testCommerceDiscountRounding() {
+    $commerce_discount = $this->createDiscount('product_discount', 'percentage', 0.01);
+    $discount_wrapper = entity_metadata_wrapper('commerce_discount', $commerce_discount);
+    $bulk_product = $this->createDummyProduct('BULK-PRODUCT', 'Bulk discount testing', 74);
+    // Create the order and apply discount.
+    $order = $this->createDummyOrder($this->store_customer->uid, array($bulk_product->product_id => 5000), 'completed');
+    $order_wrapper = commerce_cart_order_refresh($order);
+    // Verify rounding came out properly.
+    $price = $order_wrapper->commerce_line_items->get(0)->commerce_total->amount_decimal->value();
+    $this->assertEqual($price, 3663, 'Rounding does not inflate discount amount');
+
+    // For a $10.25 product with a 30% discount, this would produce as expected
+    // a $3.08 discount with a line item unit price of $7.17.
+    $commerce_discount = $this->createDiscount('product_discount', 'percentage', 0.3);
+    $product = $this->createDummyProduct('BC-APPLES', 'B.C. Apples', 1025);
+    // Create the order and apply discount.
+    $order = $this->createDummyOrder($this->store_customer->uid, array($product->product_id => 1), 'completed');
+    $order_wrapper = commerce_cart_order_refresh($order);
+    // Verify rounding came out properly.
+    $line_item_wrapper = $order_wrapper->commerce_line_items->get(0);
+    $price = $line_item_wrapper->commerce_total->amount_decimal->value();
+    $this->assertEqual($price, 717, 'Rounding does not inflate discount amount');
+    // Check if the discount was added as a component to the line item.
+    $price_data = $line_item_wrapper->commerce_unit_price->data->value();
+    $this->assertTrue($price_data['components'][1]['price']['amount'] == -308, 'Percentage product discount is added as a price component to the line item.');
+    // Order total is correct.
+    $this->assertTrue($order_wrapper->commerce_order_total->amount->value() == 717, 'Percentage product discount was deducted correctly on order total.');
+  }
+
+  /**
    * Test discount compatibility strategies.
    *
    * Currently implemented strategies include: