AC-9221::SubTotal Rounding Issue For Decimal Quantity Enabled Product

Author: glo60612

app/code/Magento/Directory/Model/Currency.php

@@ -344,9 +344,6 @@ public function formatPrecision(
         if (!isset($options['precision'])) {
             $options['precision'] = $precision;
         }
-        if (is_numeric($price)) {
-            $price = round($price, $precision);
-        }
         if ($includeContainer) {
             return '<span class="price">' . ($addBrackets ? '[' : '') . $this->formatTxt(
                 $price,
@@ -431,6 +428,11 @@ private function formatCurrency(string $price, array $options): string
 
         $this->numberFormatter = $this->getNumberFormatter($options);
 
+        $this->numberFormatter->setAttribute(
+            \NumberFormatter::ROUNDING_MODE,
+            \NumberFormatter::ROUND_HALFUP
+        );
+
         $formattedCurrency = $this->numberFormatter->formatCurrency(
             $price,
             $this->getCode() ?? $this->numberFormatter->getTextAttribute(\NumberFormatter::CURRENCY_CODE)