WooCommerce - show price in two currencies

<?php
  // WooCommerce - show price in two currencies
  // not great because you'll need to manually update the factor regularly
  add_filter( 'woocommerce_get_price_html', 'euros_custom_price', 100, 2 );
  function euros_custom_price( $price, $product ) {
    $factor = 0.008352; // Euro conversion factor
    if ( $product->is_type('simple') ) {
      $my_price = $product->get_price();
      $euros = $my_price * $factor;
      $euros = number_format($euros, 2);
      $price = 'XPF ' . $price . ' (EUROS ' . $euros . ')';
    }
    if ( $product->is_type('variable') ) {
      $min_price = $product->get_variation_price('min');
      $min_euros = $min_price * $factor;
      $min_euros = number_format($min_euros, 2);
      $max_price = $product->get_variation_price('max');
      $max_euros = $max_price * $factor;
      $max_euros = number_format($max_euros, 2);
      $price = 'XPF '.$min_price.' to '.$max_price.' (EUROS '.$min_euros.' to '.$max_euros.')';
    }
    return $price;
  }