atikju

{% if template contains 'product' %}
  <meta property="og:type" content="product">
  <meta property="og:title" content="{{ product.title | strip_html | escape }}">
  <meta property="og:category" content="{{ product.type }}" />
  {% for image in product.images limit:3 %}
  <meta property="og:image" content="http:{{ image.src | product_img_url: 'master' }}">
  <meta property="og:image:secure_url" content="https:{{ image.src | product_img_url: 'master' }}">
  {% endfor %}
  <meta property="og:price:amount" content="{{ product.price | money_without_currency | stip_html | escape | remove: ',' }}">
  <meta property="og:price:currency" content="{{ shop.currency }}">

atikju

<?php // Do not include this if already open!

/**
 * Code goes in theme functions.php.
 */
add_filter( 'woocommerce_get_price_suffix', 'custom_woocommerce_get_price_suffix', 10, 2 );

function custom_woocommerce_get_price_suffix( $price_display_suffix, $product ) {
  if ( ! $product->is_taxable() ) {
    return '';