add_filter( 'woocommerce_get_price_html', 'show_saved_amount', 100, 2 );
function show_saved_amount( $price, $product ) {

    if ( ! $product || ! $product->is_on_sale() ) {
        return $price;
    }

    // Variable product skip (safe)
    if ( $product->is_type( 'variable' ) ) {
        return $price;
    }

    $regular = (float) $product->get_regular_price();
    $sale    = (float) $product->get_sale_price();
    $save    = $regular - $sale;

    if ( $regular > 0 && $sale > 0 && $save > 0 ) {
        $price .= '<br><span style="color:#b08a57;font-weight:600;">Save ৳' . number_format( $save ) . '</span>';
    }

    return $price;
}<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://saajen.com/wp-sitemap.xsl" ?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><url><loc>https://saajen.com/author/saajen/</loc></url></urlset>