ENGCOM-4340: [Backport] Issue fix #20010 Wrong price amount in opengr…

…aph #21202

 - Merge Pull Request #21202 from mage2pratik/magento2:2.2-develop-PR-port-20011
 - Merged commits:
   1. 85cdc9d

app/code/Magento/Catalog/view/frontend/templates/product/view/opengraph/general.phtml

@@ -14,7 +14,7 @@
 <meta property="og:image" content="<?= $block->escapeUrl($block->getImage($block->getProduct(), 'product_base_image')->getImageUrl()) ?>" />
 <meta property="og:description" content="<?= $block->escapeHtmlAttr($block->stripTags($block->getProduct()->getShortDescription())) ?>" />
 <meta property="og:url" content="<?= $block->escapeUrl($block->getProduct()->getProductUrl()) ?>" />
-<?php if ($priceAmount = $block->getProduct()->getFinalPrice()):?>
+<?php if ($priceAmount = $block->getProduct()->getPriceInfo()->getPrice(\Magento\Catalog\Pricing\Price\FinalPrice::PRICE_CODE)->getAmount()):?>
     <meta property="product:price:amount" content="<?= /* @escapeNotVerified */ $priceAmount ?>"/>
     <?= $block->getChildHtml('meta.currency') ?>
 <?php endif;?>