diff --git a/app/code/Magento/SalesRule/Model/Rule/Action/Discount/ByPercent.php b/app/code/Magento/SalesRule/Model/Rule/Action/Discount/ByPercent.php
index 836e1fc8956dc..eed37ecf42207 100644
--- a/app/code/Magento/SalesRule/Model/Rule/Action/Discount/ByPercent.php
+++ b/app/code/Magento/SalesRule/Model/Rule/Action/Discount/ByPercent.php
@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2014 Adobe
+ * All Rights Reserved.
  */
 namespace Magento\SalesRule\Model\Rule\Action\Discount;
 
@@ -60,12 +60,16 @@ protected function _calculate($rule, $item, $qty, $rulePercent)
         $baseItemOriginalPrice = $this->validator->getItemBaseOriginalPrice($item);
 
         $_rulePct = $rulePercent / 100;
-        $discountData->setAmount(($qty * $itemPrice - $item->getDiscountAmount()) * $_rulePct);
-        $discountData->setBaseAmount(($qty * $baseItemPrice - $item->getBaseDiscountAmount()) * $_rulePct);
-        $discountData->setOriginalAmount(($qty * $itemOriginalPrice - $item->getDiscountAmount()) * $_rulePct);
-        $discountData->setBaseOriginalAmount(
-            ($qty * $baseItemOriginalPrice - $item->getBaseDiscountAmount()) * $_rulePct
-        );
+
+        $amount = ($qty * $itemPrice - $item->getDiscountAmount()) * $_rulePct;
+        $baseAmount = ($qty * $baseItemPrice - $item->getBaseDiscountAmount()) * $_rulePct;
+        $originalAmount = ($qty * $itemOriginalPrice - $item->getDiscountAmount()) * $_rulePct;
+        $baseOriginalAmount = ($qty * $baseItemOriginalPrice - $item->getBaseDiscountAmount()) * $_rulePct;
+
+        $discountData->setAmount(round(floatval((string) $amount), 2));
+        $discountData->setBaseAmount(round(floatval((string) $baseAmount), 2));
+        $discountData->setOriginalAmount(round(floatval((string) $originalAmount), 2));
+        $discountData->setBaseOriginalAmount(round(floatval((string) $baseOriginalAmount), 2));
 
         if (!$rule->getDiscountQty() || $rule->getDiscountQty() >= $qty) {
             $discountPercent = min(100, $item->getDiscountPercent() + $rulePercent);
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/Rule/Action/Discount/ToPercentTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/Rule/Action/Discount/ToPercentTest.php
index 8b710cf46d63c..e28ff6b93770c 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/Rule/Action/Discount/ToPercentTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/Rule/Action/Discount/ToPercentTest.php
@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2014 Adobe
+ * All Rights Reserved.
  */
 declare(strict_types=1);
 
@@ -221,8 +221,8 @@ public static function calculateDataProvider()
                 'expectedRuleDiscountQty' => 100,
                 'expectedDiscountData' => [
                     'amount' => 98,
-                    'baseAmount' => 59.49999999999999,
-                    'originalAmount' => 118.99999999999999,
+                    'baseAmount' => 59.50,
+                    'originalAmount' => 119,
                     'baseOriginalAmount' => 80.5,
                 ],
             ]
diff --git a/dev/tests/integration/testsuite/Magento/SalesRule/Model/Rule/Action/Discount/CartFixedTest.php b/dev/tests/integration/testsuite/Magento/SalesRule/Model/Rule/Action/Discount/CartFixedTest.php
index 145e86b35d62c..9724ba7ecfd64 100644
--- a/dev/tests/integration/testsuite/Magento/SalesRule/Model/Rule/Action/Discount/CartFixedTest.php
+++ b/dev/tests/integration/testsuite/Magento/SalesRule/Model/Rule/Action/Discount/CartFixedTest.php
@@ -535,7 +535,7 @@ public static function discountByPercentDataProvider()
             ],
             [
                 'percentDiscount' => 50,
-                'expectedDiscounts' => ['simple1' => 5.72, 'simple2' => 15.27, 'totalDiscount' => -20.99]
+                'expectedDiscounts' => ['simple1' => 5.72, 'simple2' => 15.28, 'totalDiscount' => -21]
             ],
             [
                 'percentDiscount' => 100,